This quiz works best with JavaScript enabled. Home > English Grammar > Grammar > Parts Of Speech > Verbs > Auxiliary Verbs > Modal Verbs > Modals Of Deduction – Quiz 13 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Modals Of Deduction Quiz 13 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A:Daniela recently moved to Texas. B:That's so strange, I could have sworn I saw her yesterday near Paseo la Fe with her family. A) She would have been seen us. B) That might have been her twin sister. C) She may not have told us the truth. D) None of the above. Show Answer Correct Answer: C) She may not have told us the truth. 2. "Can't" and "shouldn't" have the same meaning when used for deduction. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 3. This ..... a fortune! (The house is huge, and it's in the most expensive part of town.) A) Must be costing. B) Must cost. C) Can't cost. D) None of the above. Show Answer Correct Answer: B) Must cost. 4. SEBASTIAN:That makes sense. They killed him so that at least one of them ..... get the inheritance. A) Should. B) Must. C) Could. D) None of the above. Show Answer Correct Answer: C) Could. 5. It's very loud in the house; the children ..... taking a nap. A) Must. B) Can't be. C) Might not be. D) None of the above. Show Answer Correct Answer: B) Can't be. 6. Come in and sit down. You ..... be tired after the long journey. A) A. must. B) B. might. C) C. can't. D) None of the above. Show Answer Correct Answer: A) A. must. 7. They can't be tourists. A) POSIBILITY. B) CERTAINITY. C) IMPOSSIBILITY. D) None of the above. Show Answer Correct Answer: C) IMPOSSIBILITY. 8. Look! That man is carrying a camera and a guidebook. A) He must be a university student. B) He must be a lawyer. C) He must be a tourist. D) He can't be enjoying the party. Show Answer Correct Answer: C) He must be a tourist. 9. This insect has four legs. It ..... be a spider because they have 6 legs. A) Must. B) Might. C) Can't. D) None of the above. Show Answer Correct Answer: C) Can't. 10. "Might" expresses a stronger degree of certainty than "could." A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 11. I can't remember my password! But I ..... written it in my notebook as sometimes I do that. A) Must have. B) May have. C) Can't have. D) None of the above. Show Answer Correct Answer: B) May have. 12. Wow-look at that diamond necklace. It ..... cost a fortune A) Must. B) Can't. C) Might. D) None of the above. Show Answer Correct Answer: A) Must. 13. She must ..... early because her car is not in the parking lot. A) Have left. B) Has left. C) Left. D) None of the above. Show Answer Correct Answer: A) Have left. 14. 'Is that Mr Jones?' A) "No, that can't be him. Mr Jones wears glasses". B) "No, that must be him. Mr Jones wears glasses". C) "No, that mustn't be him. Mr Jones wears glasses". D) None of the above. Show Answer Correct Answer: A) "No, that can't be him. Mr Jones wears glasses". 15. That ..... be James, James wears glasses. Beside that boy is taller than James. A) Must. B) Can't. C) May. D) None of the above. Show Answer Correct Answer: B) Can't. 16. The book isn't on the table. It ..... A) Could be in my bag. B) Couldn't be in my bag. C) Can't be in my bag. D) None of the above. Show Answer Correct Answer: A) Could be in my bag. 17. John ..... been very happy when he found out he was going to be a father. He's wanted this for a long time. A) Could have. B) Must have. C) May have. D) Might have. Show Answer Correct Answer: B) Must have. 18. You ..... be bored already! You've only been here three minutes. A) A. must. B) B. could. C) C. can't. D) None of the above. Show Answer Correct Answer: C) C. can't. 19. Oh no! My phone's not in my bag. I ..... left it at home. A) Must have. B) Can have. C) Couldn't have. D) None of the above. Show Answer Correct Answer: A) Must have. 20. Bill and Sue go on holiday very often, so they ..... be short of money. (it's IMPOSSIBLE!) A) Must. B) Might. C) Can't. D) None of the above. Show Answer Correct Answer: C) Can't. 21. Mike is a vegetarian, so his dish ..... contain any meat. A) Must. B) Can't. C) Might not. D) None of the above. Show Answer Correct Answer: B) Can't. 22. I'm sure he didn't do it =? A) He can't do it. B) He can't have done it. C) He must have done it. D) He might have done it. Show Answer Correct Answer: B) He can't have done it. 23. Sorry, but I'm not Charlie Puth. You ..... me for someone else. A) A. might be confusing. B) B. can't confuse. C) C. must be confusing. D) None of the above. Show Answer Correct Answer: C) C. must be confusing. 24. A:Is that Jane?B:No, it ..... be Jane, she is in Chicago now. A) Must. B) Can't. C) Might. D) None of the above. Show Answer Correct Answer: B) Can't. 25. Complete with the correct modal verb.This ..... be the first time you've seen this film-it's been out for ages! A) Can. B) Could. C) Can't. D) Must. Show Answer Correct Answer: C) Can't. 26. Ece ..... studied really hard. She passed all her exams with excellent grades. A) Could have. B) Might have. C) Must have. D) Should have. Show Answer Correct Answer: C) Must have. 27. Jane must have forgotten our date-she's usually always on time. A) It is certain. B) It is not certain. C) All the above. D) None of the above. Show Answer Correct Answer: A) It is certain. 28. Sarah must have ..... so happy when she found out she was being promoted. A) Be. B) Is. C) Being. D) Been. Show Answer Correct Answer: D) Been. 29. A:I think I saw Nicholas at the mall yesterday.B:That's impossible. You ..... Nicholas! He has been in hospital since last week. A) Can't have seen. B) Must have seen. C) Mustn't have seen. D) None of the above. Show Answer Correct Answer: A) Can't have seen. 30. The jacket you bought is very good quality. (it / very expensive) A) It must have been very expensive. B) It might be expensive. C) It could be expensive. D) It can't have been very expensive. Show Answer Correct Answer: A) It must have been very expensive. 31. 'Look. Simon's given me a present. What do you think it is?" It ..... be perfume, I suppose. It's about the right size.' A) Can't. B) Can. C) Must. D) Could. Show Answer Correct Answer: D) Could. 32. A:Look at this! I passed the exam without studying!B:Really? That exam ..... have been difficult then! A) Can't. B) Must. C) Might. D) None of the above. Show Answer Correct Answer: A) Can't. 33. She ..... feed her dog! It's starving! A) Must. B) Has to. C) May. D) Could. Show Answer Correct Answer: A) Must. 34. A:Where is Tom?B:He ..... be talking to our boss. He wanted to see him today. A) Must. B) Can't. C) Might. D) None of the above. Show Answer Correct Answer: C) Might. 35. Tom isn't at work today. He ..... ill. A) Must have felt. B) Must be feeling. C) Can't be feeling. D) None of the above. Show Answer Correct Answer: B) Must be feeling. 36. Maybe talking to Mark will help you solve the problem. A) Talking to Mark might help. B) Talking to Mark must help. C) Talking to Mark can't help. D) None of the above. Show Answer Correct Answer: A) Talking to Mark might help. 37. Jake has a Lambourgini. He ..... be rich! A) Must. B) Might. C) Can't. D) None of the above. Show Answer Correct Answer: A) Must. 38. She ..... have worked really hard to pass every exam this term. A) Could. B) Must. C) All the above. D) None of the above. Show Answer Correct Answer: B) Must. 39. Do you have your ID card? I'm not sure if you'll need it but they ..... ask you for your ID. A) Can't. B) Might. C) Must. D) None of the above. Show Answer Correct Answer: B) Might. 40. That's unbelievable! You ..... Brad Pitt at Bicentenario Park. A) May have met. B) Can't have met. C) Must have met. D) Can't have meet. Show Answer Correct Answer: B) Can't have met. 41. Your mother ..... be a great cook. You are always so keen to get back home to eat. A) Can't. B) May. C) Must. D) None of the above. Show Answer Correct Answer: C) Must. 42. We didn't need to bring any chairs. Look-there's plenty of them! A) It wasn't necessary for us to bring any chairs, but we did because we didn't know. B) It was unnecessary to bring any chairs, though we did it. C) All the above. D) None of the above. Show Answer Correct Answer: B) It was unnecessary to bring any chairs, though we did it. 43. The car doesn't start. It ..... be the plugs, but I'm not really sure. A) Must. B) Could. C) All the above. D) None of the above. Show Answer Correct Answer: B) Could. 44. You're not wearing a coat. A) You can't be cold. B) You could be cold. C) You must be cold. D) None of the above. Show Answer Correct Answer: C) You must be cold. 45. You can use Modals of Deduction to talk about the present and the past. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 46. They might not speak English. They're ..... A) French. B) American. C) All the above. D) None of the above. Show Answer Correct Answer: A) French. 47. Complete the sentence.My passport ..... be in my house. I've already looked inside my bag three times and It's no there. A) Must. B) May. C) Can't. D) None of the above. Show Answer Correct Answer: A) Must. 48. He ..... have finished a 500-page book in a single day! A) Couldn't. B) Can't. C) Might. D) Must. Show Answer Correct Answer: A) Couldn't. 49. The weather ..... have been hot this summer because there's no water in the lake. A) May. B) Can't. C) Must. D) None of the above. Show Answer Correct Answer: C) Must. 50. I can't remember what Jason does at university. He could study geography or he ..... geology. A) COULD STUDY. B) STUDY. C) MIGHT HAVE STUDIED. D) None of the above. Show Answer Correct Answer: A) COULD STUDY. 51. He ..... be at home because all the lights are off, and his car isn't in the driveway. A) Shouldn't. B) Can't. C) Mustn't. D) Might not. Show Answer Correct Answer: B) Can't. 52. We use " ..... " when something is not true at all. A) Can't. B) Must. C) May/might/could. D) None of the above. Show Answer Correct Answer: A) Can't. 53. Luara ..... like the shirt. It's not really her style. A) Might. B) Can't. C) Might not. D) Must not. Show Answer Correct Answer: C) Might not. 54. He speaks fluent French and knows a lot about French culture. He ..... have lived in France for some time. A) Must. B) Could. C) May. D) None of the above. Show Answer Correct Answer: C) May. 55. Alexandra applied for Harvard University and she received the results in the morning. She hasn't said anything yet but she's extremely happy right now. A) She must have passed the exam. B) She must have failed the exam. C) She can't have passed the exam. D) None of the above. Show Answer Correct Answer: A) She must have passed the exam. 56. That man must be French. A) POSIBILITY. B) CERTAINTY. C) IMPOSSIBILITY. D) None of the above. Show Answer Correct Answer: B) CERTAINTY. 57. Your sisters tell different versions of what happened. One of them ..... be lying. A) Must. B) May. C) Could. D) None of the above. Show Answer Correct Answer: A) Must. 58. That couple ..... (think) much of the show. They lest after only 20 minutes! A) Can't think. B) Couldn't have thought. C) Couldn't has thought. D) Must have thought. Show Answer Correct Answer: B) Couldn't have thought. 59. I ..... finish the project by tomorrow if I stay at work all night, but I'm not sure A) Must. B) May. C) Can't. D) None of the above. Show Answer Correct Answer: B) May. 60. I ..... a lot as an accounting manager, but the job was just too boring. A) Could have earned. B) Might earn. C) Must earn. D) None of the above. Show Answer Correct Answer: A) Could have earned. ← 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