This quiz works best with JavaScript enabled. Home > English Grammar > Grammar > Parts Of Speech > Verbs > Auxiliary Verbs > Modal Verbs > Modals Of Deduction – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Modals Of Deduction Quiz 3 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. She isn't answering the phone. She ..... be out. A) Must. B) Can't. C) Should. D) None of the above. Show Answer Correct Answer: A) Must. 2. Linda got married with Tommy in less than a month! They ..... have shared a very strong bond since they met. A) Must. B) Could. C) Can. D) None of the above. Show Answer Correct Answer: B) Could. 3. Of course John isn't here today. He spent the whole night drinking. He ..... be at home with a serious hangover. A) Can't. B) Will. C) Must. D) May. Show Answer Correct Answer: C) Must. 4. Peter: "Does Tom own that car?" Mary: "No, I think his brother ..... it now." A) Has owned. B) Can own. C) Owns. D) Is owning. Show Answer Correct Answer: C) Owns. 5. It's about 9 o'clock. The shop ..... not be close yet. A) May. B) Can. C) Must. D) None of the above. Show Answer Correct Answer: A) May. 6. He ..... be at the gym right now. Sometimes he goes there at this time. A) Might. B) Must. C) Can't. D) None of the above. Show Answer Correct Answer: A) Might. 7. The food smells a bit, so it ..... be rotten. A) CAN'T. B) MUST. C) MAY. D) None of the above. Show Answer Correct Answer: C) MAY. 8. She can't ..... the message yet; it's unread. (I sent it just a few minutes ago, and her phone is on silent.) A) Be seeing. B) Have seen. C) See. D) None of the above. Show Answer Correct Answer: B) Have seen. 9. You ..... be hungry again. You've only just had dinner! A) Might. B) Must. C) Should. D) Can't. Show Answer Correct Answer: D) Can't. 10. It ..... be sugar-free. It has ice cream in it. A) Can't. B) May not. C) Must. D) None of the above. Show Answer Correct Answer: A) Can't. 11. Maybe John went to the shop. A) John must have gone to the shop. B) John may have gone to the shop. C) John might not have gone to the shop. D) None of the above. Show Answer Correct Answer: B) John may have gone to the shop. 12. He ..... gone to the city center. He did say he wanted to go Christmas shopping today. A) Couldn't have. B) Might not have. C) Can't have. D) Could have. Show Answer Correct Answer: D) Could have. 13. She ..... live close to where she works because she walks to work. A) Must. B) May. C) Might. D) None of the above. Show Answer Correct Answer: A) Must. 14. She knew everything about our plans. (she / listen / to our conversation) A) She must have listened to our conversation. B) She can't have listened to our conversation. C) She should have listened to our conversation. D) None of the above. Show Answer Correct Answer: A) She must have listened to our conversation. 15. Mario's phone is broken. He ..... have left it with Sophie before going in the roller coaster. A) Should. B) Can't. C) Must. D) None of the above. Show Answer Correct Answer: A) Should. 16. The researchers must ..... found the cure. There were at least 20 reporters at the lab. A) Had. B) Have. C) May have. D) None of the above. Show Answer Correct Answer: B) Have. 17. The library is closed, and all the lights are off. What is the most likely deduction? (Choose one) A) It must be open, but with the lights off. B) They're probably closed for the weekend. C) Someone must be working late. D) They could be having a power outage. Show Answer Correct Answer: D) They could be having a power outage. 18. He ..... know the answer, he's the best in the class. A) Might. B) Can. C) Must. D) None of the above. Show Answer Correct Answer: C) Must. 19. Ahmed drinks three cups of coffee every morning at his desk. A) He might have had tea. B) He must not like coffee. C) He must like coffee. D) None of the above. Show Answer Correct Answer: C) He must like coffee. 20. The car plunged into the river, but they ..... escape. A) Might. B) Managed to. C) Could. D) Ought to. Show Answer Correct Answer: B) Managed to. 21. It ..... rain this afternoon. A) Might. B) Can't be. C) Must. D) May be. Show Answer Correct Answer: A) Might. 22. Modal Verbs you can use for Deductions A) Must / Mustn't. B) Might / May. C) Can / Can't. D) Could / Couldn't. E) All of the above. Show Answer Correct Answer: E) All of the above. 23. He ..... known it was your birthday. Otherwise, I'm sure he would have wished you a happy day. A) May not have. B) Might have. C) Must have. D) Can't have. Show Answer Correct Answer: D) Can't have. 24. They ..... be Colombian because they're speaking Spanish A) Can't. B) Must. C) Could. D) None of the above. Show Answer Correct Answer: C) Could. 25. He ..... like that shirt. I don't think it's his style. A) May not. B) Might. C) Must. D) None of the above. Show Answer Correct Answer: A) May not. 26. You ..... be right but I'll check anyway. A) Can. B) Might. C) All the above. D) None of the above. Show Answer Correct Answer: B) Might. 27. It is still a mystery how the robber gained access to the bank. Police are investigating whether the suspect ..... known one of the employees. A) Couldn't have. B) May have. C) Could have. D) Must have. Show Answer Correct Answer: B) May have. 28. I ..... talk to your father as soon as possible. Is he at home? A) Need to. B) Can. C) Could. D) None of the above. Show Answer Correct Answer: A) Need to. 29. What does the modal verb 'must' indicate in the text? A) Security in a deduction. B) Doubt. C) Possibility. D) Prohibition. Show Answer Correct Answer: A) Security in a deduction. 30. What does Pete's friend do?-I'm not sure, but he ..... be a doctor. I think he works at the hospital. A) Might. B) Mustn't. C) Can't. D) Must. Show Answer Correct Answer: A) Might. 31. She goes camping every weekend. She ..... really love the outdoors A) Must. B) Can't. C) Might. D) None of the above. Show Answer Correct Answer: A) Must. 32. You ..... told her the truth. It would've saved a lot of trouble. A) Should have. B) Can't have. C) Might have. D) None of the above. Show Answer Correct Answer: A) Should have. 33. Tom said he took a picture of a huge bear in his backyard, but no one has seen the photo. A) He couldn't have taken a picture of the bear. B) He might take a picture of the bear. C) He may or may not have taken a picture of the bear. D) None of the above. Show Answer Correct Answer: C) He may or may not have taken a picture of the bear. 34. According to experts, making virtual friends ..... as valuable as making real friends. It's not the same relationship. A) Might have been. B) Must be. C) Can't be. D) Might have. Show Answer Correct Answer: C) Can't be. 35. Nobody's answering the phone. They ..... be out A) Must. B) Can't. C) All the above. D) None of the above. Show Answer Correct Answer: A) Must. 36. Who left their laptop on my desk? It ..... be Paul's. He's working at home today. A) Must. B) Can't. C) May. D) None of the above. Show Answer Correct Answer: B) Can't. 37. Sarah ..... been so happy when she found out she was being promoted A) Shouldn't have. B) Can't have. C) Couldn't have. D) Must have. Show Answer Correct Answer: D) Must have. 38. Your mother ..... a great cook. Your siblings were fighting over her old cooking book. A) Can't have. B) Have. C) Must have been. D) May have. Show Answer Correct Answer: C) Must have been. 39. He ..... for us at the wrong location. A) Might been waiting. B) Might have waiting. C) Might have been waiting. D) None of the above. Show Answer Correct Answer: C) Might have been waiting. 40. Must, May and Could have different meanings and should not be used to say they mean the same. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 41. He ..... his illness with better eating habits. But now it's too late. A) Must not have prevented. B) Can have prevented. C) Could have prevented. D) None of the above. Show Answer Correct Answer: C) Could have prevented. 42. We use the modal verb "must" to express possibility about something that is unlikely to happen. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 43. Joel has forgotten about the meeting. We ..... him about it yesterday. A) Should have reminding. B) Can have reminded. C) Must have reminded. D) Should have reminded. Show Answer Correct Answer: D) Should have reminded. 44. That ..... be the vegetarian option. It's got chicken in it. A) Might/may/could. B) Can't. C) Must. D) None of the above. Show Answer Correct Answer: B) Can't. 45. I had to wait 45 minutes for a bus yesterday. There ..... been an accident A) Might be. B) Might have. C) Must have. D) Can't have. Show Answer Correct Answer: B) Might have. 46. Sarah got 20 in her exam, so she ..... hard. A) May have. B) Must. C) Must have studied. D) Might have. Show Answer Correct Answer: C) Must have studied. 47. We use might/can't/must to say how sure/certain we are based on information we have. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 48. I left my bicycle in front of the library and it's disappeared. Someone ..... stolen it. A) Must have. B) Must not have. C) Can't have. D) Might have. Show Answer Correct Answer: A) Must have. 49. She ..... be in love with him She told me she hates him. A) Can't. B) Might not. C) May. D) None of the above. Show Answer Correct Answer: A) Can't. 50. Match the modal MIGHT/MAY with its function A) Not true or impossible. B) 100% Completely certain. C) 50%-Maybe certain. D) None of the above. Show Answer Correct Answer: C) 50%-Maybe certain. 51. I was reading the book last night befofe I went to bed. I never took it out of this room. It ..... be lying around here somewhere. A) Should. B) Must. C) Could. D) None of the above. Show Answer Correct Answer: B) Must. 52. That deafening noise might be a lorry. A) POSIBILITY. B) CERTAINTY. C) IMPOSSIBILITY. D) None of the above. Show Answer Correct Answer: A) POSIBILITY. 53. ..... you pass the salt? (formal polite request) A) Would. B) Could. C) Will. D) All answers are correct. Show Answer Correct Answer: D) All answers are correct. 54. That child is running around and laughing. He ..... be very happy with his friends. A) Can. B) Must. C) Could. D) Might. Show Answer Correct Answer: B) Must. 55. I didn't get your e-mail. Do you think you ..... sent it to my old e-mail address. A) Can't have. B) Could have. C) Must have. D) None of the above. Show Answer Correct Answer: B) Could have. 56. It ..... the delivery at the door. (We ordered food 30 minutes ago, and it should arrive soon.) A) Could be. B) Couldn't be. C) Can't be. D) None of the above. Show Answer Correct Answer: A) Could be. 57. He has to work on holidays. He ..... feel very happy about this. A) Can't. B) Must. C) Might/may/could. D) None of the above. Show Answer Correct Answer: A) Can't. 58. Paul's class starts at 8:30. It's 8:45 and he's not here yet. I dont know where hi is.He ..... A) Must have missed the bus. B) Might have missed the bus. C) Must have been sick. D) None of the above. Show Answer Correct Answer: B) Might have missed the bus. 59. The thief ..... that far. Look at the floor! He's bleeding; we have to follow his blood. A) Can't have gone. B) May have goe. C) Can't have go. D) Must have gone. Show Answer Correct Answer: A) Can't have gone. 60. He ..... the project already; it was a massive task. A) Can't have. B) Can't finished. C) Can't have finished. D) None of the above. Show Answer Correct Answer: C) Can't have finished. ← PreviousNext →Related QuizzesAuxiliary Verbs QuizzesVerbs QuizzesModals Of Deduction Quiz 1Modals Of Deduction Quiz 2Modals Of Deduction Quiz 4Modals Of Deduction Quiz 5Modals Of Deduction Quiz 6Modals Of Deduction Quiz 7Modals Of Deduction Quiz 8Modals Of Deduction Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books