1) You two go ahead without me. I _____ have to work until late tonight. a) can b) may c) should d) could 2) This box isn't as heavy as it looks. You _____ help me with it.  a) must b) mustn't c) might d) needn't 3) Yesterday everyone in the office ______ leave the building for a fire drill.  a) must b) had to c) might d) should 4) You _____ play loud music at night. The neighbors will call the police. a) mustn't b) couldn't c) might not d) needn't 5) You _____ stand up. There are a lot of seats available on the bus. a) couldn't b) mustn't c) needn't d) might not 6) People who use public parks _____ clean up after themselves. a) must b) may c) ought d) might 7) This library book is overdue. I _____ better return it today. a) need b) must c) might d) had 8) Our company provides free advice on the use of our products. You _______ pay us. a) must b) have to c) needn't d) mustn't 9) Whatever _______ come, I'll always be by your side. a) must b) may c) could d) need 10) "______ you hand me that book, please?" "Sure. Here it is." a) Could b) Should c) Must d) May 11) I ________ some milk at the supermarket yesterday. Now I have nothing to eat with cereal. a) should have bought b) can't have bought c) needn't have bought d) could have bought 12) Mary ______ that expensive dictionary. Students are allowed to borrow it from our university library. a) should have bought b) must have bought c) needn't have bought d) couldn't have bought 13) Alice won the school competition last Friday. She _________ very pleased. a) could have been b) must have been c) needn't have been d) shoudn't have been 14) You _________ out last night. I called several times but nobody answered the phone. a) could have been b) must have been c) should have been d) need have been 15) I _________ for a day off on Saturday, but I decided to work instead. a) could have asked b) must have asked c) should have asked d) need have asked 16) An _________ that Korean book; he doesn't know a single Korean word. a) should have read b) couldn't have read c) must have read d) needn't have read 17) "Peter got bad mark on the Physics test" - "No way, he is the best student in our class. He __________ that low score".. a) couldn't have got b) must have got c) needn't have got d) shouldn't have got 18) Micheal’s score on the test is the highest in the class; he _________ hard last night. a) should have studied b) must have studied c) couldn't have studied d) needn't have studied 19) The boy _________ the dishes himself, but his father decided to help. a) could have done b) should have done c) must have done d) need have done 20) The girl ___________ around so many times. She got dizzy and fell down. a) shouldn’t have spun b) couldn’t have spun c) mustn’t have spun d) needn't have spun 21) They___________ a lot because they’re very good musicians. a) must have practiced b) could have practiced c) need have practiced d) should have practiced 22) You __________me a new bike. My old bike is still fine. a) needn’t have bought b) couldn’t have bought c) mustn’t have bought d) shouldn’t have bought 23) You _________theater tickets yesterday because they give it away for free to students today. a) needn’t have bought b) couldn’t have bought c) shouldn’t have bought d) mustn’t have bought 24) She ____________so many eggs. There are a dozen of them in the frigde. a) needn’t have bought b) couldn’t have bought c) shouldn’t have bought d) mustn’t have bought 25) I __________ so much cake. I am unpleased now. a) shouldn’t have eaten b) couldn’t have eaten c) mustn’t have eaten d) needn’t have eaten

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