1) You ___ be quiet in the library. a) must b) can c) would 2) I ___ play the guitar when I was ten. a) should b) could c) must 3) You ___ eat so much candy. It’s bad for your teeth. a) shouldn’t b) might c) can 4) He looks very tired. He ___ go home and rest. a) should b) can c) might 5) ___ I go to the bathroom, please? a) may b) must c) should 6) She ___ finish the project by Friday. The boss said it's urgent. a) must b) may c) can 7) They ___ come to the meeting, but they’re not sure yet. a) might b) must c) should 8) You ___ walk if you want. I can drive you. a) don’t have to b) mustn’t c) can’t 9) We ___ leave early if the weather gets worse. a) might b) have to c) must 10) You ___ smoke here. It’s forbidden. a) mustn’t b) shouldn’t c) can’t 11) If you’re tired, you ___ take a nap. a) can b) must c) will 12) He ___ call his boss immediately. It's very important. a) must b) should c) might 13) I ___ help you if I had more time. a) would b) can c) should 14) ___ you help me carry this box, please? a) could b) may c) shall 15) I’m not sure yet. I ___ go to the party. a) might b) should c) must 16) You look exhausted. You ___ have stayed up all night. a) must b) might c) should 17) He ___ have told her the truth. Now she’s really upset. a) should b) can c) would 18) She ___ be at home. I saw her car outside. a) must b) could c) may 19) You ___ have eaten those leftovers. They were spoiled. a) shouldn’t b) might not c) mustn't 20) I ___ call him, but I don’t think it’s necessary right now. a) could b) must c) have to 21) He’s late. He ___ have forgotten the meeting. a) may b) should c) has to 22) That ___ be Jane at the door. She said she was out of town. a) can’t b) mustn’t c) shouldn’t 23) You ___ have finished by now. What happened? a) ought to/should-have to b) may c) can 24) You ___ try restarting your computer. It might solve the problem. a) could b) must c) shall 25) I ___ be wrong, but I think she’s lying. a) might b) can c) will 26) They ___ have taken the train instead of driving through the storm. a) could b) must c) would 27) You ___ have locked the door before leaving. a) should  b) can c) may 28) He ___ be working late. His office light is still on. a) must b) could c) has to 29) That test was too easy. You ___ have studied so much! a) didn’t have to b) shouldn’t c) couldn’t 30) She ___ have been nicer to the staff. They were just doing their job. a) should b) can c) might 31) Which phrase uses “must” the best? a) You must like pizza. b) You must be tired after such a long day. c) You must to go now. 32) Which phrase uses “can’t” the best? a) She can’t sings that well. b) It can’t be true. He never lies. c) You can’t to open the window. 33) Which phrase uses “should” the best? a) You should to study more. b) You should have seen that movie, it was amazing. ✅ c) You should goes now. 34) Which phrase uses “could” the best? a) I could to help you yesterday. b) I could swim when I was five.  c) I could goes to the party. 35) Which phrase uses “may” the best? a) May you please open the door? b) It may rain later, take an umbrella. c) May she goes to school? 36) Which phrase uses “would” the best? a) I would go if I had time. b) I would to like coffee. c) I would studying hard. 37) Which phrase uses “might” the best? a) He might comes later. b) We might visit grandma this weekend. c) Might you help me now? 38) Which phrase uses “mustn’t” the best? a) You mustn’t forget your passport. b) You mustn’t to be late. c) You mustn’t going there. 39) Which phrase uses “shouldn’t” the best? a) You shouldn’t speak so loudly in here. b) You shouldn’t to eat now. c) You shouldn’t going there. 40) Which phrase uses “have to” the best? a) I have to finish this report today. b) I have to goes now. c) I have to to study more. 41) Which phrase uses “could have” the best? a) She could have helped them. b) She could have helps us. c) She could have to go. 42) Which phrase uses “might have” the best? a) They might have lost the keys. b) They might have loses it. c) They might have to gone early. 43) Which phrase uses “should have” the best? a) You should have studied more. b) You should have to study. c) You should have study more. 44) Which phrase uses “can” the best? a) Can you swim? b) Can you to swim? c) Can you swimming? 45) Which phrase uses “would have” the best? a) I would have gone if you had called. b) I would have to go if called. c) I would have went.

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