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A1–C2 · TOEFL iBT

TOEFL iBT Practice Test 12

AI-generated practice paper in the style of TOEFL iBT — original material, not a reproduction of any real exam paper, following the official task types. Listening audio is read aloud by your browser's voice. For Speaking you can record yourself and compare with a model answer, and Writing tasks include a model answer — neither is scored automatically, since that needs real speech and writing evaluation this site does not offer for this exam.

Reading

Complete the Words

Type the missing letters to complete the words in the paragraph.

Gregor Mendel, a monk who lived in what is now the Czech Republic, is often called the father of genetics. In the 1850s, he cros thousands of pea plants and carefully reco the results. He noticed that tra such as flower col did not blend but were inher as separate units. Some traits were domi, appearing in most offspring, while others see to vanish and returned later. His work was igno for decades. Only after 1900 did other scien rediscover it and recog its importance.

Read in Daily Life

Read the text and answer the questions.

Subject: Your membership is about to expire Dear Mr. Okafor, Your annual membership at Northside Fitness ends on 31 May. If you renew before 15 May, you will receive a 10 percent discount and two free sessions with a personal trainer. You can renew online or at the front desk. After 31 May, you will need to pay a $30 registration fee again. We hope to see you soon! Northside Fitness Team

1. Why is the gym writing to Mr. Okafor?

2. What will happen if he renews on 20 May?

Care instructions: Peace Lily Light: Bright, indirect light. Avoid direct sun, which can scorch the leaves. Water: Once a week; allow the top of the soil to dry between waterings. Signs of thirst: Leaves droop noticeably, then recover within hours of watering. Feeding: Liquid fertiliser once a month during spring and summer only. Keep away from cold drafts and heating vents.

3. What does it mean if the leaves are drooping?

4. When should the plant be fed?

Read an Academic Passage

Read the passage and answer the questions.

Dendrochronology, the scientific study of tree rings, relies on a straightforward biological fact: in temperate climates, trees typically add one visible growth ring per year, and the width and characteristics of that ring reflect the specific growing conditions of that particular year, with wide rings generally indicating favourable growth conditions such as ample rainfall and moderate temperatures, and narrow rings indicating stress from drought, extreme cold, or other unfavourable conditions. Because trees growing in the same climatic region tend to show similar patterns of wide and narrow rings in the same years, scientists can match overlapping ring patterns from living trees, dead trees, and even ancient wood recovered from archaeological sites or old buildings to construct a continuous chronology extending back thousands of years beyond the lifespan of any single tree, a technique called crossdating. This continuous record has proven valuable well beyond dating wooden artifacts and historic structures; because tree rings preserve a year-by-year record of climate conditions, researchers use dendrochronology to reconstruct historical rainfall and temperature patterns, and even to identify the years of specific volcanic eruptions, since eruptions that inject enough ash and aerosols into the atmosphere can cause a detectable, widespread pattern of unusually narrow rings, sometimes called a frost ring, across trees in distant regions during the affected growing season. The field has also provided crucial calibration data for radiocarbon dating, since precisely dated tree rings allow scientists to correct for small historical fluctuations in atmospheric radiocarbon levels, improving the accuracy of that entirely separate dating method.

5. According to the passage, what does a wide tree ring generally indicate?

6. As used in the passage, "crossdating" refers to

7. What can be inferred about a widespread pattern of unusually narrow "frost rings" found across trees in distant regions?

8. Why does the author mention radiocarbon dating near the end of the passage?

9. What is the main idea of the passage?

Listening

Listen and Choose a Response

Listen to each speaker, then choose the best response.

1. Choose the best response.

2. Choose the best response.

3. Choose the best response.

4. Choose the best response.

5. Choose the best response.

6. Choose the best response.

7. Choose the best response.

8. Choose the best response.

Listen to a Conversation

Listen to the conversation, then answer the questions.

9. What does Frank say the experience section needs?

10. What is Frank's advice about the skills section?

11. What will Emma do tonight?

Listen to an Announcement

Listen to the announcement, then answer the questions.

12. What is included in tonight's program?

13. What are guests asked to do before leaving?

Listen to an Academic Talk

Listen to part of a lecture, then answer the questions.

14. What does the professor clarify about the Silk Road?

15. What spread along the Silk Road besides goods, according to the lecture?

16. What religion is mentioned as spreading via these routes?

17. How did most merchants typically use the network?

Writing

Build a Sentence

Click the words and phrases to put them in the correct order.

1. What did the librarian say?

2. I'm thinking about changing my major.

3. Why were you late this morning?

4. I forgot to bring my student card.

5. How was the seminar?

Write an Email

Write an email that responds to the situation.

You are a teaching assistant. A student has asked for an extension on an essay. You want to write to the whole class about a change in the submission process. In your email, do the following: - Announce the new submission method. - Explain the reason for the change. - Remind students of the deadline and the penalty for lateness.
Show sample answer
Model answer: Dear students, I am writing to inform you that essays for this course must now be submitted online through the course website rather than handed in on paper. Please upload a single PDF file, and make sure your name is on the first page. The reason for the change is that several papers were misplaced last term, which caused problems for both students and markers. Online submission gives you a timestamp and an automatic receipt, so nothing can be lost. As a reminder, the deadline is Friday, 5 December, at noon. Late essays will lose five percent of the mark for each day, so please do not leave it until the last minute. If you have any technical problems, contact me immediately. Best wishes, Rachel Cooper

Write for an Academic Discussion

Read the discussion and write a post that contributes to it.

Professor Diaz: In our ethics class, we are discussing honesty. Is it ever acceptable to tell a small lie to protect someone's feelings? Please give your opinion with examples. Grace: I think it's fine. If a friend cooks a meal that isn't great, saying you enjoyed it costs nothing and makes them happy. Ravi: Lying is never good. Once people find out, they stop trusting you. It's better to be honest in a kind way. Write a post that contributes to the discussion (at least 100 words).
Show sample answer
Model answer: I tend to agree with Ravi, though I understand Grace's point. Small lies about trivial things, such as pretending to like a present, can seem harmless and even polite. They avoid unnecessary conflict. However, I think it is usually possible to be both honest and kind. If a friend's cooking is disappointing, you can say that you appreciate the effort and suggest that you would like to try something different next time. That is truthful and does not hurt. The danger of white lies is that they can become a habit, and then people cannot rely on what we say when it matters. Trust is very hard to rebuild, so I would rather choose careful honesty than a comfortable lie.

Speaking

Listen and Repeat

Listen to each sentence and repeat it exactly.

Recorded on your device only — play it back and compare with the model answer.
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Model answer: I forgot my umbrella today.
Recorded on your device only — play it back and compare with the model answer.
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Model answer: Is this seat taken by anyone?
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Model answer: The bus was ten minutes late.
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Model answer: He decided to switch his major to economics last spring.
Recorded on your device only — play it back and compare with the model answer.
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Model answer: My uncle has been renovating his kitchen for almost a year now.

Take an Interview

Answer each interview question. Speak for about 45 seconds.

Recorded on your device only — play it back and compare with the model answer.
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Model answer: One memory that stands out is building a treehouse with my father in our backyard when I was about eight years old. It took an entire summer, and it wasn't very sturdy, but I was so proud of it.
Recorded on your device only — play it back and compare with the model answer.
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Model answer: It's stayed with me because of the time we spent together, just the two of us, measuring wood and figuring out problems as they came up, without any real plan at the start.
Recorded on your device only — play it back and compare with the model answer.
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Model answer: The treehouse itself was eventually taken down, but I still have a photo of it on my wall, and my father and I still enjoy small hands-on projects together whenever I visit home.
Recorded on your device only — play it back and compare with the model answer.
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Model answer: I think early memories like that one shape our comfort with trying new things and making mistakes. That project taught me not to be afraid of doing something imperfectly, as long as I actually try.
Keep your streak going

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