This quiz works best with JavaScript enabled. Home > Grammar > Test Prep > Toefl > Toefl Grammar – Quiz 15 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Toefl Grammar Quiz 15 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A laser cane, which the blind find useful, sends out beams that detecting obstacles A) Correct. B) Incorrect. Show Answer Correct Answer: B) Incorrect. 2. No single factor explains why ..... vary so greatly among individuals. A) Aging affects. B) The effects of aging. C) Aging has an effect. D) The aging effect. Show Answer Correct Answer: B) The effects of aging. 3. ..... of chamber music is the string quartet. A) The famous most form. B) The most famous form. C) The form most famous. D) Most the form famous. Show Answer Correct Answer: B) The most famous form. 4. The papers that I need they don't appear anywhere. A) Correct. B) Incorrect. Show Answer Correct Answer: B) Incorrect. 5. We ..... video games after school. A) Play. B) Plays. Show Answer Correct Answer: A) Play. 6. To overcome rejection of a skin graft, a system for matching donor and recipient ..... A) Tissues have developed. B) Tissues have been developed. C) Tissues has developed. D) Tissues has been developed. Show Answer Correct Answer: D) Tissues has been developed. 7. "John isn't sure that the meeting will be held tomorrow.""But I ..... " A) Certain. B) Certainly. C) Am certain. D) Am certainly. Show Answer Correct Answer: C) Am certain. 8. R. M. Bartlett of Philadelphia ..... the first private business college in the United States in 1843. A) Founding. B) Founded. C) Was founded. D) Founds. Show Answer Correct Answer: B) Founded. 9. If we ..... a practical point of view, then the most important property of the rays is the production of physiological effects on the cells of the human organism. A) Are taking. B) Take. C) Takes. D) To take. Show Answer Correct Answer: B) Take. 10. ..... the demands of aerospace, medicine, and agriculture, aengineers, are creating exotic new metallic substances. A) Meet. B) Being met are. C) To meet. D) They are meeting. Show Answer Correct Answer: C) To meet. 11. Can you heat water for ..... ? A) A. B) An. C) The. D) None of above. Show Answer Correct Answer: C) The. 12. Located the cranial cavity in the skull, the brain is the larger mass of nerve tissue in the human body. A) In. B) The brain. C) Larger. D) Human body. Show Answer Correct Answer: C) Larger. 13. It was the invent of the hand-held electronic calculator that provided the original technology for the present generation of small but powerful computers. A) It. B) Was. C) The invent. D) The present. Show Answer Correct Answer: C) The invent. 14. Cro-Magnon man ..... where the first remains were discovered. A) Was named after the caves in southwest France. B) Was names after the caves in southwest France. C) Were named after the caves in southwest France. D) Named after the caves in southwest France. Show Answer Correct Answer: A) Was named after the caves in southwest France. 15. TOEFL Grammar Review (Count and Noncount Nouns) ..... Sorry, I'm late. I had (trouble / troubles) with the car this morning. A) Trouble. B) Troubles. Show Answer Correct Answer: A) Trouble. 16. ..... with their surroundings, or they hide in crevices for protection. A) Lobsters. B) Lobsters blend. C) Lobsters blending. D) Because lobsters blend. Show Answer Correct Answer: B) Lobsters blend. 17. When we woke up, everywhere was ..... snow. A) Covered. B) Covered by. C) Covered with. D) Covering. Show Answer Correct Answer: C) Covered with. 18. All the elements ..... such radiation I have termed radioactive. A) Emission. B) Are emitting. C) Have emitted. D) Emitting. Show Answer Correct Answer: D) Emitting. 19. I don't want to have my tooth ..... , I hate dentists. A) To be extracted. B) Having extracted. C) Being extracted. D) Extracted. Show Answer Correct Answer: D) Extracted. 20. We will find out soon enough ..... he lied to us about ..... from college. A) Whether or not / having graduated. B) In case / having graduated. C) In case / being graduating. D) Whether / being graduated. Show Answer Correct Answer: A) Whether or not / having graduated. 21. Tom ..... TV at midnight. A) Watches. B) Watch. C) Watch. D) None of above. Show Answer Correct Answer: A) Watches. 22. Algae range in size from microscope one-celled plants to huge masses of seaweed. A) In. B) Microscope. C) One-celled. D) Masses. Show Answer Correct Answer: B) Microscope. 23. Choose the best clause marker:Sequoyah became a teacher and moved to Oklahoma ..... he continued to teach Indian languages. A) How. B) Where. C) To whom. D) That. Show Answer Correct Answer: B) Where. 24. Psychologists have traditionally maintained that infants cannot formulate long-term memories until ..... the age of eight or nine months. A) They. B) They reach. C) To reach. D) Reach. Show Answer Correct Answer: B) They reach. 25. Which one is INCORRECT?Kepler's Laws, principles outlining planetary movement, was formulated based on observations made without a telescope. A) Principles. B) Was. C) Based on. D) A. Show Answer Correct Answer: B) Was. ← 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