This quiz works best with JavaScript enabled. Home > English Grammar > Grammar > Parts Of Speech > Verbs > Auxiliary Verbs > Modal Verbs > Modals Of Deduction – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Modals Of Deduction Quiz 10 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. He ..... have his own house. He's only a small child. A) Must. B) Can't. C) Could. D) None of the above. Show Answer Correct Answer: B) Can't. 2. How many lessons ..... before you passed your tests? A) Were you having. B) Do you have. C) Have you had. D) Had you had. Show Answer Correct Answer: D) Had you had. 3. Paul: "Why are you so sure that Ann didn't commit the crime she's been accused of committing?"Rosy: "She ..... that crime because I was with her, and we were out of town on that day." A) May not have committed. B) Committed. C) Wasn't supposed to commit. D) Couldn't have committed. Show Answer Correct Answer: D) Couldn't have committed. 4. Jules is very busy. She ..... be able to come tonight. A) Can. B) Must. C) Might not. D) Might. Show Answer Correct Answer: C) Might not. 5. You just ate a huge dinner! You ..... be hungry again already! A) Must. B) Can't. C) Might. D) None of the above. Show Answer Correct Answer: B) Can't. 6. He ..... his work already but I'm not sure. A) Must have finished. B) Might have finished. C) Can't have finished. D) None of the above. Show Answer Correct Answer: B) Might have finished. 7. This song ..... be very popular. I have never heard it before. A) Must. B) Might. C) Can't. D) None of the above. Show Answer Correct Answer: C) Can't. 8. Look at that guy's enormous muscles. He ..... work out a lot. A) Must. B) Can't. C) Might. D) None of the above. Show Answer Correct Answer: A) Must. 9. Max isn't replying to my texts. He ..... taken his phone with him. A) Can't have. B) Might have. C) Must have. D) None of the above. Show Answer Correct Answer: A) Can't have. 10. You ..... seen her, surely! She was standing right in front of you. A) Might have. B) Must have. C) Couldn't have. D) May have. Show Answer Correct Answer: B) Must have. 11. They ..... been at the cafe, but I didn't see them. A) Can have. B) Couldn't have. C) Can't have. D) Might have. Show Answer Correct Answer: D) Might have. 12. We ..... have known about this; nobody told us anything about it. A) Could. B) Couldn't. C) Can't. D) Must. Show Answer Correct Answer: B) Couldn't. 13. A:Look at her diamond ring. B:Yes, it ..... cost a fortune. A) Must have. B) Can't have. C) All the above. D) None of the above. Show Answer Correct Answer: A) Must have. 14. 'Where's Kim?'I'm not sure. Try her office-she ..... be in there.' A) Mustn't. B) Must. C) Can't. D) Might. Show Answer Correct Answer: D) Might. 15. The suspect was seen leaving the building right before the fire started.What can the investigators conclude? A) "He might not have realized there was a fire when he left.". B) "He can't have left the building before the fire if he was innocent.". C) "He must have started the fire.". D) "He must not have been paying attention to the smoke.". Show Answer Correct Answer: C) "He must have started the fire.". 16. The exam results will be out soon. It ..... be this week or possibly next week. A) Must. B) Might. C) Can't. D) None of the above. Show Answer Correct Answer: B) Might. 17. It ..... be cold in that house. deduction:It's possible that it is A) Might not. B) Must. C) May-might-could. D) Can't. Show Answer Correct Answer: C) May-might-could. 18. It's possible that Janet's car broke down before she reached London. A) The car could break down. B) The car must have broken down. C) The car might have broken down. D) None of the above. Show Answer Correct Answer: C) The car might have broken down. 19. I ..... revised more for the exam. I was lazy and now I'll fail. A) Must have. B) Should have. C) Can't have. D) Could have. Show Answer Correct Answer: B) Should have. 20. Liam had no doubts. He said he ..... have enrolled the girl to participate in the contest, as the payment is reflected in the system. A) Must. B) May. C) Can. D) None of the above. Show Answer Correct Answer: A) Must. 21. You ..... shouted at Pamela. She's very upset. A) Shouldn't have. B) Mustn't have. C) Couldn't have. D) None of the above. Show Answer Correct Answer: A) Shouldn't have. 22. He ..... be American. He's wearing a baseball cap. A) Must. B) Can. C) Might. D) None of the above. Show Answer Correct Answer: C) Might. 23. A:Someone is calling you! It says is your brother. B:My brother's phone is right next to me. It's not him. Check again. A) It must have been her brother. B) It may have been a paranormal experience. C) It couldn't have been her brother. D) None of the above. Show Answer Correct Answer: C) It couldn't have been her brother. 24. 'Is that Suzie's jacket?" No, it ..... be-it's too big.' A) Might not. B) Mustn't. C) Can't. D) None of the above. Show Answer Correct Answer: C) Can't. 25. The restaurant is always full, so it ..... be popular. A) CAN'T. B) MAY. C) MIGHT. D) MUST. Show Answer Correct Answer: D) MUST. 26. It's snowing in England. It must be very cold there. A) Internal obligation. B) Advice. C) Logical deduction. D) Permission. Show Answer Correct Answer: C) Logical deduction. 27. There was a terrible E. Coli outbreak at the school. A) It may not have been the poor hygiene standards. B) It must have been the poor hygiene standards. C) It must have the poor hygiene standards. D) None of the above. Show Answer Correct Answer: B) It must have been the poor hygiene standards. 28. The cake is all brown. Obviously, it ..... be a chocolate cake. A) Must. B) Might. C) Can't. D) None of the above. Show Answer Correct Answer: A) Must. 29. A:Pamela isn't answering her phone.B:She ..... switched it off or left it at home. A) Must have. B) Can't have. C) Might have. D) None of the above. Show Answer Correct Answer: C) Might have. 30. The team has been practicing hard all week; they ..... be ready for the championship. A) Must. B) Can't. C) Might not. D) None of the above. Show Answer Correct Answer: A) Must. ← PreviousNext →Related QuizzesAuxiliary Verbs QuizzesVerbs QuizzesModals Of Deduction Quiz 1Modals Of Deduction Quiz 2Modals Of Deduction Quiz 3Modals Of Deduction Quiz 4Modals Of Deduction Quiz 5Modals Of Deduction Quiz 6Modals Of Deduction Quiz 7Modals Of Deduction Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books