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 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Sam bought an expensive mobile phone. He ..... earn a lot of money. A) Might. B) Must. C) Can't. D) None of the above. Show Answer Correct Answer: B) Must. 2. That's nonsense! Ben ..... be German because he doesn't speak the language. A) Can't. B) Might. C) Will. D) None of the above. Show Answer Correct Answer: A) Can't. 3. Transform these sentences using relative clauses:English is fascinating. I'm really interested in this subject. A) English is a fascinating subject what I'm really interested in. B) English is a fascinating subject whom I'm really interested in. C) English is a fascinating subject that is interesting. D) English is a fascinating subject which I'm really interested in. Show Answer Correct Answer: D) English is a fascinating subject which I'm really interested in. 4. For what do we use 'past modals of deduction'? A) To guess about the future. B) To guess about the present. C) To guess about the past. D) None of the above. Show Answer Correct Answer: C) To guess about the past. 5. They ..... still be out! It's freezing outside. A) Can't. B) Could. C) All the above. D) None of the above. Show Answer Correct Answer: A) Can't. 6. The movie is so exciting; you ..... fall asleep during it. A) Can't. B) Mustn't. C) Might not. D) None of the above. Show Answer Correct Answer: A) Can't. 7. Phil isn't in this room, but he ..... be in his bedroom. A) Can't. B) Must. C) Could. D) None of the above. Show Answer Correct Answer: C) Could. 8. A:Patrick isn't answering his phone. B:He ..... switched it off or left it at home. A) Might have. B) Couldn't have. C) Could have. D) Must have. Show Answer Correct Answer: A) Might have. 9. She stared at her cell phone all the time. She ..... more rude. A) Can't be. B) Must have felt. C) Might have been. D) Couldn't have been. Show Answer Correct Answer: D) Couldn't have been. 10. Susan ..... feeling terrible after someone posted that remark under her status. A) Must be. B) Might have. C) Might have been. D) Must have felt. Show Answer Correct Answer: A) Must be. 11. A:I think I've broken my arm-it really hurts.B:I don't know ..... you (a) it. I'm not an expert, but it doesn't look broken. A) Must have broken. B) May have broken. C) Can't have broken. D) A. might not have broken. Show Answer Correct Answer: D) A. might not have broken. 12. I've got no idea where Suzan is. Try the library. She ..... be in there. A) Must. B) May not. C) Might. D) Can't. Show Answer Correct Answer: C) Might. 13. That girl looks exactly like Tim's mother. They ..... A) Can't be sisters. B) Mustn't be sister. C) Must be sisters. D) None of the above. Show Answer Correct Answer: C) Must be sisters. 14. MIGHT/MAY/COULD are used to say that we're not sure. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 15. Our dog didn't come home last night. I'm worried a car ..... (run) him over. A) Must have run. B) Can't have run. C) Could have run. D) None of the above. Show Answer Correct Answer: C) Could have run. 16. It's very windy. It ..... get cold tonight. A) Can't. B) May. C) All the above. D) None of the above. Show Answer Correct Answer: B) May. 17. The phone is ringing. It ..... be Charlotte; she said she would call this morning. A) Can. B) Can't. C) Must. D) None of the above. Show Answer Correct Answer: C) Must. 18. There is a lot of traffic, so I ..... arrive on time. A) Must. B) May not. C) All the above. D) None of the above. Show Answer Correct Answer: B) May not. 19. She ..... , which is why she isn't hungry. A) May already eaten. B) May have already eaten. C) May has already eaten. D) None of the above. Show Answer Correct Answer: B) May have already eaten. 20. My mobile isn't in my bag. I ..... it at home. A) Can't have left. B) Might leave. C) Must leave. D) Must have left. Show Answer Correct Answer: D) Must have left. 21. The car ..... during the storm. A) Might have damaged. B) Might have been damage. C) Might have been damaged. D) None of the above. Show Answer Correct Answer: C) Might have been damaged. 22. They ..... be rich-they've got three houses! A) Can. B) Might. C) Must. D) None of the above. Show Answer Correct Answer: C) Must. 23. He helped us so much over the years. He ..... stolen the money ..... and yet, the evidence is there. A) Should have. B) Might have. C) Couldn't have. D) Could have. Show Answer Correct Answer: C) Couldn't have. 24. They ..... be playing outside; it's raining. (The rain is heavy, and no one is in the playground.) A) Mustn't. B) Might not. C) Can't. D) None of the above. Show Answer Correct Answer: C) Can't. 25. Andrew did no revision for the exam but he's passed. I think he might have ..... A) Cheated. B) Cheating. C) Cheaten. D) Cheats. Show Answer Correct Answer: A) Cheated. 26. His doctor told him he needs to lose some weight. A) He couldn't have had a bad diet. B) He must have had a bad diet. C) He may not have had a bad diet. D) None of the above. Show Answer Correct Answer: B) He must have had a bad diet. 27. It's possible that they want to sell their flat. They ..... sell it A) Must. B) Can't. C) Mustn't. D) Might. Show Answer Correct Answer: D) Might. 28. He ..... (na pewno mieszka) near here because he always walks to work. A) Could live. B) Must live. C) Should live. D) Might live. Show Answer Correct Answer: B) Must live. 29. Someone tells you they hear footsteps outside their house, but no one is there. What can you deduce? A) It must be a ghost. B) It might be an animal. C) It can't be anything at all. D) None of the above. Show Answer Correct Answer: B) It might be an animal. 30. A 'I think he ..... be French with a name like Luc.' B 'Yes, he sounds French too.' A) Must. B) Can't. C) Could. D) None of the above. Show Answer Correct Answer: A) Must. 31. This ..... be the correct answer, we don't need to check. A) Must. B) Might. C) All the above. D) None of the above. Show Answer Correct Answer: A) Must. 32. I'm almost certain I know the answer. It ..... be 134! A) Must. B) Could. C) Might. D) None of the above. Show Answer Correct Answer: A) Must. 33. You got here very quickly. You ..... very fast. A) Must have walked. B) Can't have walked. C) Must walk. D) None of the above. Show Answer Correct Answer: A) Must have walked. 34. Your friend doesn't answer your text messages but you saw them active online. What can you deduce? A) They must be ignoring you. B) They might not have seen your messages. C) They can't be using their phone. D) None of the above. Show Answer Correct Answer: B) They might not have seen your messages. 35. You ..... be right, but it's better if we check. A) Can. B) Might. C) Can't. D) None of the above. Show Answer Correct Answer: B) Might. 36. Oh no! Where are my keys? I know! I ..... have left them on my office's desk! This is the fifth time this month! A) Must. B) Might. C) Could. D) None of the above. Show Answer Correct Answer: A) Must. 37. There's no pizza left. We ..... eaten it all. A) Can't have. B) Could have. C) Must have. D) None of the above. Show Answer Correct Answer: C) Must have. 38. We use "must" for things that are definitely true. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: B) True. 39. We ..... have purchased some food for the cat, I just don't remember if I put it in the bag or not. A) Must. B) May. C) Can. D) None of the above. Show Answer Correct Answer: B) May. 40. I heard that you bought a new Lamborghini car last week. You should save more money as now you have been retired from work. A) Critisism. B) Possibility. C) Advice/suggestion. D) Prohibition. Show Answer Correct Answer: C) Advice/suggestion. 41. He ..... be our teacher! He looks about twelve years old. A) Might/may/could. B) Can't. C) Must. D) None of the above. Show Answer Correct Answer: B) Can't. 42. Paul is behaving in a very unusual way. I think he ..... again. A) Can't drink. B) Can be drinking. C) Might be drinking. D) None of the above. Show Answer Correct Answer: C) Might be drinking. 43. Levi ..... by now. It's only a 20 minutes journey. A) Musts have arrived. B) Must have arrived. C) Must has arrived. D) Must have arrives. Show Answer Correct Answer: B) Must have arrived. 44. 'I've been working since 5 this morning.' A) 'You can be exhausted!'. B) 'You must be exhausted!'. C) 'You would be exhausted!'. D) 'You might be exhausted!'. Show Answer Correct Answer: B) 'You must be exhausted!'. 45. I don't know why I am so tired these days. I ..... be working too hard or maybe I am not sleeping well. A) Might. B) Can't. C) Must. D) None of the above. Show Answer Correct Answer: A) Might. 46. Andy thinks she's from Australia but I think she ..... be from New Zealand A) Can't. B) Might. C) All the above. D) None of the above. Show Answer Correct Answer: B) Might. 47. That ..... be Danny. He said he was going abroad this week. A) Must. B) Can't. C) May/might/could. D) None of the above. Show Answer Correct Answer: B) Can't. 48. I ..... written down the number incorrectly. I've just called a hospital instead. A) Might have. B) Could have. C) Must have. D) Couldn't have. Show Answer Correct Answer: C) Must have. 49. I'm surprised that Ted isn't here. He ..... that the meeting is today. A) Might. B) Must. C) Might not. D) Can't. Show Answer Correct Answer: C) Might not. 50. I think the image may be blurred. A) POSIBILITY. B) CERTAINTY. C) IMPOSSIBILITY. D) None of the above. Show Answer Correct Answer: A) POSIBILITY. 51. We can't see her anywhere. She ..... to her house. A) Can't go. B) May have been. C) Must have gone. D) Might gone. Show Answer Correct Answer: C) Must have gone. 52. Anna: "I went with him to show him the way. "Jack: "You ..... that. He knows the way." A) May not have done. B) Didn't need to do. C) Needn't have done. D) Shouldn't have done. Show Answer Correct Answer: C) Needn't have done. 53. Tony's phone is turned off. He ..... be on the plane now. A) Might. B) May not. C) Can't. D) Must. Show Answer Correct Answer: A) Might. 54. If you call Rob now, he ..... finished eating dinner. A) 'll have. B) Must have. C) Can't have. D) None of the above. Show Answer Correct Answer: A) 'll have. 55. Dave ..... like One Direction. He paid a little fortune to that concert ticket. A) Must. B) Could. C) Might. D) None of the above. Show Answer Correct Answer: A) Must. 56. 'Have you see Clara?" She's gone for lunch. She ..... be in the canteen.' A) Would. B) Must. C) Can't. D) None of the above. Show Answer Correct Answer: B) Must. 57. There was one banana left, but now it's gone. My husband ..... eaten it. A) Must have. B) Can't have. C) Can't. D) Must. Show Answer Correct Answer: A) Must have. 58. He ..... his phone at the restaurant. He couldn't find it when he arrived home. A) Must have left. B) Can't have left. C) Could have left. D) None of the above. Show Answer Correct Answer: C) Could have left. 59. We ..... come back to Florida next year, as we've had such a good time. A) Might well. B) Can well. C) Can't. D) None of the above. Show Answer Correct Answer: A) Might well. 60. He ..... be guilty. He's never committed a crime in his life! A) Must. B) Can't. C) All the above. D) None of the above. Show Answer Correct Answer: B) Can't. ← 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