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 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. I saw a bright light in the sky last night. It seemed too big to be a star. A) It must have been a planet. B) It may or may not have been in the sky. C) It couldn't have been a planet. D) None of the above. Show Answer Correct Answer: A) It must have been a planet. 2. Maybe Darren didn't know about the outbreak.He ..... shcool. A) Might not attend. B) May have attended. C) Must attend. D) None of the above. Show Answer Correct Answer: B) May have attended. 3. My purse isn't in my pocket. It ..... A) Must be in my bag. B) Must in my bag. C) Must'n be in my bag. D) None of the above. Show Answer Correct Answer: A) Must be in my bag. 4. He ..... be here. I can see his car in front of this building. A) Must. B) Might. C) May. D) None of the above. Show Answer Correct Answer: A) Must. 5. Emily has been absent from work for three days; she ..... on vacation. A) Must be. B) Might not be. C) Can't be. D) None of the above. Show Answer Correct Answer: A) Must be. 6. He ..... forgotten it . He's very punctual. A) Should have. B) Can't have. C) Could have. D) Must have. Show Answer Correct Answer: B) Can't have. 7. Roberto looks unhappy. He ..... a fight with the boss. A) Might have had. B) Couldn't have had. C) Must have. D) May had. Show Answer Correct Answer: A) Might have had. 8. I checked the entire house. He iesn't anywhere. He ..... gone out. A) Can't have. B) Must have. C) Should have. D) None of the above. Show Answer Correct Answer: B) Must have. 9. We must have done something wrong because he looks really ..... A) Angry. B) Happy. C) All the above. D) None of the above. Show Answer Correct Answer: A) Angry. 10. You saw her yesterday? That's impossible! A) You can't have seen her. B) You should have seen her. C) You could see her. D) You could have seen her. Show Answer Correct Answer: A) You can't have seen her. 11. I had the opportunity to study medicine in a prestigious university but I decided to follow my passion and become an actress instead. Imagine that, I ..... a doctor. A) Could have become. B) Must have become. C) Can't have become. D) None of the above. Show Answer Correct Answer: A) Could have become. 12. Do you know where Carl went? He ..... (leave)-his car keys are on the table. A) Can't have leave. B) Might have left. C) Must have left. D) Couldn't have left. Show Answer Correct Answer: D) Couldn't have left. 13. I suppose he ..... been a doctor or a nurse. I'm not really sure. A) Can't have. B) Will have. C) Might have. D) None of the above. Show Answer Correct Answer: C) Might have. 14. I saw the photos and the messages ..... She ..... lied to me all this time! A) Might have. B) Couldn't have. C) Should have. D) None of the above. Show Answer Correct Answer: B) Couldn't have. 15. Linda ..... have worked over time last night, she looks so exhausted! A) Must. B) Could. C) Should. D) None of the above. Show Answer Correct Answer: A) Must. 16. Match the modal MUST with its function A) To express 100% of certainty. B) To express 50% of certainty. C) To express obligation. D) Information that is impossible or not true. Show Answer Correct Answer: A) To express 100% of certainty. 17. I'm certain I've left my umbrella at home. A) I could have left it. B) I must have left it. C) I can't have left it. D) I might have left it. Show Answer Correct Answer: B) I must have left it. 18. Marlene said she had been working all night, I think ..... A) She might be exahusted and decided to go home early. B) She must be exhausted and decided to go home early. C) She should be exhausted and decided to go home early. D) None of the above. Show Answer Correct Answer: B) She must be exhausted and decided to go home early. 19. Wow! you have eaten uo everything! You ..... been very hungry. A) Can't have. B) Could have. C) Should have. D) Must have. Show Answer Correct Answer: D) Must have. 20. You got here very quickly. You must ..... very fast. A) Have walked. B) Walked. C) Be walking. D) None of the above. Show Answer Correct Answer: A) Have walked. 21. I think I ..... (see) this film before but I can't remember. A) Might have seen. B) Can't have seen. C) Must have seen. D) None of the above. Show Answer Correct Answer: A) Might have seen. 22. My friend promised to pick me up at 7:00. It's now 7:25 and I don't see him.( certainty)HE ..... A) Might forget. B) Might have forgotten. C) Must have forgotten. D) None of the above. Show Answer Correct Answer: C) Must have forgotten. 23. The sun is shining, so it ..... raining. A) Must be. B) Might not be. C) Can't be. D) None of the above. Show Answer Correct Answer: C) Can't be. 24. John is ill. He ..... go to the doctor. A) Can't. B) Can. C) Should. D) Shouldn't. Show Answer Correct Answer: C) Should. 25. Did you take my wallet by any chance? I ..... have lost it! I think left it in my purse! A) Can't. B) Couldn't. C) Mustn't. D) None of the above. Show Answer Correct Answer: B) Couldn't. ← PreviousRelated 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