Tes TOEFL Online Gratis untuk Cek Kemampuan Bahasa Inggrismu

Tes TOEFL sering menjadi salah satu persyaratan untuk melanjutkan pendidikan, mendaftar beasiswa, mengikuti seleksi kerja, maupun mengukur kemampuan bahasa Inggris secara akademik. Agar lebih siap menghadapi tes, peserta perlu membiasakan diri mengerjakan soal dengan struktur kalimat yang kompleks, kosakata kontekstual, serta bacaan yang membutuhkan ketelitian tinggi.

Kumpulan 35 contoh soal TOEFL tingkat sulit berikut mencakup materi Structure, Written Expression, dan Reading Comprehension. Setiap soal dilengkapi pilihan jawaban, kunci, serta pembahasan agar peserta tidak hanya mengetahui jawaban yang benar, tetapi juga memahami aturan tata bahasa dan alasan di balik pemilihan jawaban tersebut.

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TOEFL ACADEMY

35 Contoh Soal TOEFL Tingkat Sulit dan Pembahasannya

Latihan mencakup Structure, Written Expression, dan Reading Comprehension. Kerjakan setiap soal sebelum membuka bagian jawaban dan pembahasannya.

Petunjuk: Pilih satu jawaban yang paling tepat. Untuk bagian Written Expression, tentukan bagian kalimat yang secara tata bahasa tidak tepat.
No. Materi Soal Pilihan Jawaban Jawaban Pembahasan
A. Structure and Written Expression – Sentence Completion
1 Inversion Not until the late nineteenth century ____ that bacteria could cause disease.
  1. scientists realized
  2. did scientists realize
  3. scientists had realized
  4. had scientists realized
  5. were scientists realizing
B. did scientists realize Frasa negatif not until yang diletakkan di awal kalimat harus diikuti inversi. Polanya adalah did + subject + verb 1.
2 Conditional Had the committee known about the funding cuts, it ____ the project.
  1. postponed
  2. would postpone
  3. would have postponed
  4. had postponed
  5. will have postponed
C. would have postponed Kalimat tersebut merupakan conditional type 3 dalam bentuk inversi. Had + subject + V3, subject + would have + V3
3 Agreement The number of applicants ____ significantly since last year.
  1. have increased
  2. are increasing
  3. has increased
  4. increase
  5. were increased
C. has increased Subjek utama adalah the number, yang bersifat tunggal. Karena itu, kata kerja yang digunakan adalah has increased.
4 Correlative Conjunction Neither the manager nor the employees ____ willing to accept the revised schedule.
  1. was
  2. is
  3. has been
  4. were
  5. be
D. were Pada konstruksi neither … nor, kata kerja mengikuti subjek yang paling dekat. Subjek terdekat adalah employees, sehingga digunakan were.
5 Subjunctive It is essential that every applicant ____ a valid identification document.
  1. submits
  2. submitted
  3. submit
  4. will submit
  5. has submitted
C. submit Setelah ungkapan seperti it is essential that, digunakan bentuk subjunctive, yaitu kata kerja dasar tanpa akhiran -s.
6 Inversion Scarcely ____ the presentation when the electricity went out.
  1. had she begun
  2. she had begun
  3. did she begin
  4. she began
  5. has she begun
A. had she begun Pola yang benar adalah scarcely had + subject + V3 + when .
7 Noun Clause What distinguishes the device from earlier models ____ its ability to operate without external power.
  1. are
  2. have been
  3. were
  4. is
  5. being
D. is Klausa what distinguishes the device berfungsi sebagai satu kesatuan subjek tunggal sehingga menggunakan kata kerja is.
8 Subject Agreement The proposal, together with several supporting documents, ____ to the board yesterday.
  1. were submitted
  2. was submitted
  3. have submitted
  4. submit
  5. are submitting
B. was submitted Frasa together with several supporting documents tidak mengubah subjek utama. Subjeknya adalah the proposal, sehingga digunakan was submitted.
9 Inversion Only after the data had been reanalyzed ____ the researchers discover the error.
  1. the researchers did
  2. did the researchers
  3. the researchers had
  4. had the researchers
  5. were the researchers
B. did the researchers Ketika frasa only after berada di awal kalimat, klausa utama harus menggunakan inversi: did + subject + verb 1.
10 Inversion So complex ____ that even experienced engineers struggled to interpret it.
  1. the design was
  2. was the design
  3. did the design
  4. the design did
  5. has the design been
B. was the design Ketika so + adjective ditempatkan di awal, struktur kalimat menggunakan inversi: so complex was the design that …
11 Reduced Clause ____ several times, the manuscript was finally accepted for publication.
  1. Revising
  2. Having revised
  3. Having been revised
  4. To revise
  5. Revised by
C. Having been revised Manuskrip menerima tindakan revisi sehingga digunakan bentuk pasif. Revisi terjadi sebelum manuskrip diterima sehingga digunakan bentuk perfect passive participle.
12 Inversion No sooner ____ than the phones began to ring.
  1. had been made the announcement
  2. the announcement had been made
  3. had the announcement been made
  4. was the announcement made
  5. did the announcement make
C. had the announcement been made Pola yang benar adalah no sooner had + subject + been + V3 + than .
13 Subjunctive Passive The professor demanded that the assignment ____ before Friday.
  1. is completed
  2. was completed
  3. be completed
  4. has been completed
  5. will complete
C. be completed Kata demanded diikuti subjunctive. Karena tugas menerima tindakan, digunakan bentuk pasif be + past participle.
14 Comparison The more accurately the instrument is calibrated, ____ the measurements will be.
  1. more reliable
  2. the more reliable
  3. most reliable
  4. the most reliable
  5. reliable
B. the more reliable Struktur perbandingan berpasangan menggunakan pola: The more …, the more …
15 Conditional Were it not for the satellite data, scientists ____ unable to track the storm accurately.
  1. are
  2. were
  3. would be
  4. had been
  5. will be
C. would be Were it not for merupakan bentuk inversi dari if it were not for. Klausa utama menggunakan would + verb 1.
B. Written Expression – Identifying Errors
16 Agreement (A) The equipment (B) in the two laboratories (C) are inspected (D) every six months.
  1. The equipment
  2. in the two laboratories
  3. are inspected
  4. every six months
C. are inspected Equipment merupakan uncountable noun dan diperlakukan sebagai subjek tunggal. Bentuk yang benar adalah is inspected.
17 Agreement (A) Neither the students (B) nor the instructor (C) were aware (D) of the schedule change.
  1. Neither the students
  2. nor the instructor
  3. were aware
  4. of the schedule change
C. were aware Kata kerja mengikuti subjek yang paling dekat, yaitu the instructor. Bentuk yang tepat adalah was aware.
18 Quantifier (A) A number of recent studies (B) has demonstrated (C) that regular exercise (D) improves cognitive function.
  1. A number of recent studies
  2. has demonstrated
  3. that regular exercise
  4. improves cognitive function
B. has demonstrated A number of + plural noun menggunakan kata kerja jamak. Bentuk yang benar adalah have demonstrated.
19 Preposition (A) Despite of (B) the heavy traffic, (C) the delegation arrived (D) at the conference on time.
  1. Despite of
  2. the heavy traffic
  3. the delegation arrived
  4. at the conference on time
A. Despite of Despite langsung diikuti noun atau noun phrase dan tidak menggunakan of. Bentuk yang benar adalah despite the heavy traffic.
20 Subjunctive (A) The committee recommended (B) that the policy (C) is revised (D) before implementation.
  1. The committee recommended
  2. that the policy
  3. is revised
  4. before implementation
C. is revised Setelah recommended that, digunakan subjunctive. Karena bentuknya pasif, frasa yang tepat adalah be revised.
21 Agreement (A) Each of the applicants (B) have submitted (C) a résumé and (D) two letters of recommendation.
  1. Each of the applicants
  2. have submitted
  3. a résumé and
  4. two letters of recommendation
B. have submitted Subjek each selalu tunggal. Bentuk yang benar adalah has submitted.
22 Agreement (A) The lead researcher, together with her assistants, (B) are preparing (C) the final report (D) for publication.
  1. The lead researcher, together with her assistants
  2. are preparing
  3. the final report
  4. for publication
B. are preparing Subjek utamanya adalah the lead researcher. Frasa tambahan tidak mengubah jumlah subjek. Bentuk yang benar adalah is preparing.
23 Correlative Structure (A) Hardly had the lecture begun (B) than (C) several students noticed (D) a mistake on the first slide.
  1. Hardly had the lecture begun
  2. than
  3. several students noticed
  4. a mistake on the first slide
B. than Pasangan yang tepat adalah hardly … when, bukan hardly … than.
24 Agreement (A) The results of the experiment (B) indicates (C) that the new compound (D) is relatively stable.
  1. The results of the experiment
  2. indicates
  3. that the new compound
  4. is relatively stable
B. indicates Subjek the results berbentuk jamak sehingga kata kerjanya harus berbentuk indicate.
25 Parallel Structure (A) The new regulations are expected (B) to reduce pollution, (C) improving public health, and (D) lower energy consumption.
  1. The new regulations are expected
  2. to reduce pollution
  3. improving public health
  4. lower energy consumption
C. improving public health Unsur dalam daftar harus sejajar: reduce pollution, improve public health, and lower energy consumption.
C. Reading Comprehension
Reading Passage 1 – Urban Heat Islands Cities are often considerably warmer than surrounding rural areas, a phenomenon known as the urban heat island effect. Concrete, asphalt, and dark roofing materials absorb large amounts of solar energy during the day and release it slowly after sunset. At the same time, the scarcity of vegetation reduces evaporative cooling. Tall buildings may further trap heat by restricting air circulation.

Urban planners have proposed several measures to mitigate this effect. Planting trees can provide shade and increase cooling through transpiration, while reflective roofs reduce the amount of heat absorbed by buildings. However, the benefits of these measures are not always distributed equally. Wealthier neighborhoods often have more trees and open spaces, whereas densely populated low-income areas may remain particularly vulnerable to extreme heat.
26 Main Idea What is the main idea of the passage?
  1. Rural areas are becoming warmer than cities.
  2. Urban heat is caused only by tall buildings.
  3. Cities experience additional heat, and several strategies may reduce it.
  4. Reflective roofs are more effective than planting trees.
  5. Low-income neighborhoods produce more solar energy.
C Bacaan menjelaskan penyebab urban heat island, solusi yang dapat digunakan, serta perbedaan distribusi manfaatnya.
27 Vocabulary The word “mitigate” in paragraph 2 is closest in meaning to ….
  1. measure
  2. intensify
  3. reduce
  4. observe
  5. predict
C. reduce Mitigate berarti mengurangi tingkat keparahan atau dampak suatu kondisi.
28 Detail According to the passage, reflective roofs help cities by ….
  1. increasing air circulation
  2. absorbing heat after sunset
  3. reducing heat absorption
  4. increasing the number of open spaces
  5. producing additional rainfall
C. reducing heat absorption Bacaan secara langsung menyatakan bahwa atap reflektif mengurangi jumlah panas yang diserap bangunan.
29 Inference What can be inferred about neighborhoods with little vegetation?
  1. They are likely to experience less daytime heat.
  2. They may be more vulnerable to extreme temperatures.
  3. They usually contain reflective roofs.
  4. They receive more air circulation.
  5. They are generally located outside cities.
B. They may be more vulnerable to extreme temperatures. Vegetasi membantu memberikan keteduhan dan pendinginan. Wilayah dengan sedikit vegetasi cenderung menerima perlindungan yang lebih rendah dari panas.
30 Purpose Why does the author mention the difference between wealthy and low-income neighborhoods?
  1. To argue that wealthy residents produce more heat
  2. To explain that climate solutions may not benefit everyone equally
  3. To prove that urban planning is ineffective
  4. To compare rural and urban incomes
  5. To show that low-income areas contain more trees
B Penulis ingin menunjukkan bahwa manfaat penghijauan dan ruang terbuka tidak selalu diterima secara merata oleh semua kelompok.
Reading Passage 2 – Sleep and Memory Sleep was once considered a passive state during which the brain simply rested. Research now suggests, however, that the sleeping brain remains highly active. One of its important functions is memory consolidation, the process through which newly acquired information becomes more stable and easier to retrieve.

In laboratory studies, participants who learn a new task and then sleep often perform better when tested later than participants who remain awake for an equivalent period. This improvement does not appear to result merely from reduced fatigue. Certain stages of sleep seem to reactivate patterns of brain activity associated with recent learning. Scientists have therefore proposed that sleep helps reorganize and strengthen new memories rather than simply protecting them from interference.
31 Main Idea What is the main purpose of the passage?
  1. To explain why sleep causes fatigue
  2. To describe the role of sleep in strengthening memory
  3. To compare different laboratory equipment
  4. To argue that people should study while sleeping
  5. To show that memory declines during sleep
B Fokus bacaan adalah peran aktif tidur dalam konsolidasi, reorganisasi, dan penguatan memori baru.
32 Vocabulary The word “consolidation” in paragraph 1 is closest in meaning to ….
  1. elimination
  2. strengthening
  3. measurement
  4. confusion
  5. replacement
B. strengthening Dalam konteks bacaan, konsolidasi membuat informasi baru menjadi lebih stabil dan mudah diingat kembali.
33 Detail According to the passage, participants who slept after learning a task often ….
  1. forgot the task completely
  2. performed better when tested later
  3. became more fatigued
  4. required less laboratory equipment
  5. avoided all interference
B. performed better when tested later Informasi tersebut disebutkan secara langsung pada paragraf kedua.
34 Inference What can be inferred from the passage about the traditional view of sleep?
  1. It underestimated the activity of the sleeping brain.
  2. It correctly explained memory consolidation.
  3. It was based entirely on laboratory experiments.
  4. It claimed that sleep damaged memory.
  5. It focused mainly on physical exercise.
A. It underestimated the activity of the sleeping brain. Pandangan lama menganggap tidur sebagai keadaan pasif. Penelitian baru menunjukkan bahwa otak tetap sangat aktif selama tidur.
35 Supported Statement Which of the following statements is supported by the passage?
  1. All stages of sleep affect memory in exactly the same way.
  2. Sleep improves memory only by reducing fatigue.
  3. The sleeping brain may reactivate patterns related to learning.
  4. Remaining awake always causes information to disappear.
  5. Memory consolidation occurs only during laboratory studies.
C Bacaan menyatakan bahwa tahap tidur tertentu dapat mengaktifkan kembali pola aktivitas otak yang berkaitan dengan pembelajaran baru.
Catatan: Soal-soal ini merupakan latihan orisinal bergaya TOEFL dan bukan soal resmi, salinan, atau bocoran dari ETS. Format dan tingkat kesulitan tes sebenarnya dapat berbeda.

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