This quiz works best with JavaScript enabled. Home > English Grammar > Grammar > Test Prep > Toefl > Toefl Grammar – Quiz 15 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Toefl Grammar Quiz 15 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which one is CORRECT?Pepsin ..... an enzyme used in digestion. A) Being. B) Of. C) Is. D) That. Show Answer Correct Answer: C) Is. 2. Washington Irving, one of America's most famous authors, was a lawyer, a businessman, and a United States diplomatic to England and Spain. A) Diplomatic. B) Authors. C) Famous. D) A. Show Answer Correct Answer: A) Diplomatic. 3. Syndicated news ..... than news from independent agents. A) Are cheaper and faster. B) Is cheaper and faster. C) Are cheap and fast. D) Is cheap and fast. Show Answer Correct Answer: B) Is cheaper and faster. 4. Complete the sentence with the best clause marker:A warrior ..... saw an enemy approaching might send a smoke signal. A) That. B) Whom. C) Which. D) Who. Show Answer Correct Answer: D) Who. 5. In order to defend itself from the enemies, cobra make itself look bigger and more threatening by ..... the skin at the back of its head. A) Spreading. B) Had spread. C) Spread. D) Have spread. Show Answer Correct Answer: A) Spreading. 6. Complete the sentence with the best clause marker:Sacagawea, ..... was a Shoshoni Indian, guided Lewis and Clark to the Columbia River. A) Which. B) Whose. C) Who. D) Whom. Show Answer Correct Answer: C) Who. 7. The new stadium ..... by the mayor next month. A) Will be opened. B) Opened. C) Opens. D) Will open. Show Answer Correct Answer: A) Will be opened. 8. At the building site the carpenters with the most experience were given the most intricate work.Is this sentence grammatically correct? A) CORRECT. B) INCORRECT. C) All the above. D) None of the above. Show Answer Correct Answer: A) CORRECT. 9. The discovery of new medicines ..... the result of advanced research in chemistry. A) Are. B) Being. C) It is. D) Is. Show Answer Correct Answer: D) Is. 10. If it ..... for his advice, we might not have succeeded. A) Hadn't been. B) Weren't. C) Wasn't. D) Wouldn't be. Show Answer Correct Answer: A) Hadn't been. 11. Choose the letter of the word or phrase that best completes the sentence:The research team has concluded that the new molecule is both environmentally friendly ..... safe for human consumption. A) As well as. B) And also. C) And it is also. D) And. Show Answer Correct Answer: D) And. 12. The food that Mark is cooking in the kitchen is smelling delicious. A) Is cooking. B) Is smelling. C) The food. D) Delicious. Show Answer Correct Answer: B) Is smelling. 13. Mushrooms get their food by causing vegetable matter decaying. A) Decaying. B) Their. C) Vegetable. D) By. Show Answer Correct Answer: A) Decaying. 14. She suggested (A) that he studies (B) harder (C) before the final exam (D). A) A. B) D. C) B. D) C. Show Answer Correct Answer: C) B. 15. What the students need most ..... motivation and encouragement. A) Are. B) Being. C) Have been. D) Is. Show Answer Correct Answer: A) Are. 16. Large, perfect shaped pearls rank in value with the most precious stones. A) Perfect. B) Precious. C) In. D) The. Show Answer Correct Answer: A) Perfect. 17. The book ..... written by a famous linguist is now used worldwide. A) Who. B) What. C) Whose. D) Which. Show Answer Correct Answer: D) Which. 18. You ..... finish this report by tomorrow. It's very important. A) Might. B) Must. C) Can. D) Should. Show Answer Correct Answer: B) Must. 19. So difficult ..... the test that almost everyone failed. A) Was. B) It is. C) It was. D) Is. Show Answer Correct Answer: A) Was. 20. The first national known male singers of popular music appeared during the 1920s. A) Appeared. B) The. C) National. D) Of. Show Answer Correct Answer: C) National. 21. The books (A) on the shelf (B) needs (C) to be organized (D) by category. A) By category. B) To be organized. C) On the shelf. D) Needs. Show Answer Correct Answer: B) To be organized. 22. ..... , many people each year seek refuge in the United States. A) Driven from their homelands. B) Driving from their homelands. C) Have driven from their homelands. D) To have driving from their homelands. Show Answer Correct Answer: A) Driven from their homelands. 23. For the last three years at various hospitals in the county has been practicing medicine.Is this sentence grammatically correct? A) CORRECT. B) INCORRECT. C) All the above. D) None of the above. Show Answer Correct Answer: B) INCORRECT. 24. After to take the medication, the patient became drowsy and more manageable. A) Became drowsy. B) The patient. C) To take. D) Manageable. Show Answer Correct Answer: C) To take. 25. She ..... in the library right now. A) Is studying. B) Studying. C) Studied. D) Studies. Show Answer Correct Answer: A) Is studying. 26. Choose the letter of the word or phrase that best completes the sentence: ..... the difficult technical challenge, the engineers managed to finish the project on time. A) In spite of. B) Despite of. C) Although. D) Even though. Show Answer Correct Answer: A) In spite of. 27. The team members were tired, ..... they kept working. A) And. B) But. C) For. D) So. Show Answer Correct Answer: B) But. 28. The students were advised ..... their assignments early. A) Submitting. B) To submit. C) Submit. D) Submitted. Show Answer Correct Answer: B) To submit. 29. The progressive reading methods at this school are given credit for the improved test scores.Is this sentence grammatically correct? A) CORRECT. B) INCORRECT. C) All the above. D) None of the above. Show Answer Correct Answer: A) CORRECT. 30. The project ..... already ..... before the manager arrived. A) Has / completed. B) Was / complete. C) Had / been completed. D) Is / completed. Show Answer Correct Answer: C) Had / been completed. ← PreviousNext →Related QuizzesTest Prep QuizzesGrammar QuizzesToefl Grammar Quiz 1Toefl Grammar Quiz 2Toefl Grammar Quiz 3Toefl Grammar Quiz 4Toefl Grammar Quiz 5Toefl Grammar Quiz 6Toefl Grammar Quiz 7Toefl Grammar Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books