This quiz works best with JavaScript enabled. Home > English Grammar > Grammar > Parts Of Speech > Verbs > Auxiliary Verbs > Modal Verbs > Modals Of Deduction – Quiz 14 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Modals Of Deduction Quiz 14 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The suspect claims he didn't commit the crime, but his fingerprints were found on the stolen items.What is the logical conclusion? A) "He must not have realized his fingerprints were there.". B) "He can't have touched the items if he wasn't involved.". C) "He might not have known they were stolen.". D) "He must have stolen the items.". Show Answer Correct Answer: D) "He must have stolen the items.". 2. They ..... be having party-the music's very loud. A) Mustn't. B) Can't. C) Must. D) None of the above. Show Answer Correct Answer: C) Must. 3. I can't find my keys. I ..... left them in the school, I suppose. A) May. B) Might have. C) Must. D) Could. Show Answer Correct Answer: B) Might have. 4. He's not a liar. The story ..... be true A) May. B) Must. C) Can. D) Have to. Show Answer Correct Answer: B) Must. 5. The neighbors ..... be out. There aren't any lights on the house. A) May. B) Might. C) Must. D) Can't. Show Answer Correct Answer: C) Must. 6. Bianca ..... have studied for her tests. She failed. A) Can't. B) Must. C) May. D) None of the above. Show Answer Correct Answer: A) Can't. 7. Zoe might be tired. She's been ..... all day. A) Working hard. B) Doing nothing. C) All the above. D) None of the above. Show Answer Correct Answer: A) Working hard. 8. You use it to smell: A) Brain. B) Stomach. C) Armpit. D) Nose. Show Answer Correct Answer: D) Nose. 9. I'm not sure, but I think Giovanna ..... have broken up with her boyfriend. She didn't bring him for the Christmas' dinner, after all. What do you think? A) May. B) Can't. C) Must. D) None of the above. Show Answer Correct Answer: A) May. 10. She hasn't got a ring. She ..... be married. A) Must. B) Can't. C) Could. D) None of the above. Show Answer Correct Answer: B) Can't. 11. You ..... heard of him. Everyone knows him. A) Will have. B) Can have. C) Must have. D) None of the above. Show Answer Correct Answer: C) Must have. 12. That ..... be the President. He ..... got any bodyguards. A) Can't/hasn't. B) Might/hasn't. C) Must/hasn't. D) None of the above. Show Answer Correct Answer: A) Can't/hasn't. 13. You ..... be tired. You had a long trip. A) Must. B) Can't. C) All the above. D) None of the above. Show Answer Correct Answer: A) Must. 14. I'm sure Dan Cooper didn't survive. A) He mustn't have survived. B) He can't have been survived. C) He might have survived. D) He can have survived. Show Answer Correct Answer: B) He can't have been survived. 15. A:Where is Jane now?B:She ..... on the way. She got on the plane at 5 a.am. Now it is 9 a.m and it takes around 8 to arrive in the US. A) Can be. B) Can't be. C) Might be. D) Must be. Show Answer Correct Answer: D) Must be. 16. You ..... be hungry-you haven't eaten since this morning. A) Could. B) Must. C) Couldn't. D) Can't. Show Answer Correct Answer: B) Must. 17. A:The volcano in Finland erupted a few years ago. B:People ..... very afraid. A:Not indeed as it was far from the cities. A) Can't have been. B) Must have been. C) Should have been. D) Might have been. Show Answer Correct Answer: B) Must have been. 18. You have walked for ten hours. You ..... very tired. A) Can be. B) Must be. C) Can't be. D) None of the above. Show Answer Correct Answer: B) Must be. 19. I don't believe you. Mery ..... that. A) Can have said. B) Must have spoke. C) Couldn't have said. D) Could have say. Show Answer Correct Answer: C) Couldn't have said. 20. Samantha has the flu. We don't know yet but she ..... need to take the whole week off. A) Must. B) May. C) Can't. D) None of the above. Show Answer Correct Answer: B) May. 21. Everyone had a terrible stomach ache the day after the wedding. A) It must not have been the food. B) It may have eaten the food. C) It may have been the food. D) None of the above. Show Answer Correct Answer: C) It may have been the food. 22. Blake: "I had to pay $ 2 for my ticket and $ 1 for the baby."Adam: "You ..... a ticket for the baby. Babies travel free." A) Mightn't have bought. B) Needn't have bought. C) Weren't to have bought. D) Mustn't have bought. Show Answer Correct Answer: B) Needn't have bought. 23. The may not be eating dinner now- A) The usually eat around this time. B) Perhaps they've finished. C) The finished their dinner an hour ago. D) None of the above. Show Answer Correct Answer: B) Perhaps they've finished. 24. Neveah passed all her tests. I'm sure she studied hard. A) May have studied. B) Must have studied. C) Could have studied. D) Must studied. Show Answer Correct Answer: B) Must have studied. 25. It ..... be easy for him to look after three kids on his own. A) Can't. B) Must. C) Might/may/could. D) None of the above. Show Answer Correct Answer: A) Can't. 26. Ask Jhon .He ..... know the answer A) Might. B) Can't. C) All the above. D) None of the above. Show Answer Correct Answer: A) Might. 27. I'm sure Eleonor left her camera at home. A) Could have left. B) Can't have left. C) May have leave. D) Must have left. Show Answer Correct Answer: D) Must have left. 28. This story is so amazing that it ..... have been made up. A) Can't. B) Must. C) Will. D) None of the above. Show Answer Correct Answer: A) Can't. 29. I left my bike outside the house last night and this morning it isn't there anymore. Somebody must ..... it. A) Have stolen. B) Steal. C) Be stealing. D) Stole. Show Answer Correct Answer: A) Have stolen. 30. She ..... (be) really hungry. Did you see how much she ate? A) Must have been. B) Can't have been. C) Might have been. D) None of the above. Show Answer Correct Answer: A) Must have been. ← 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