1 . —Could I play basketball with Mike now, mom?
—No, you ________ make your room clean and tidy first.
—No, you ________ make your room clean and tidy first.
| A．can | B．may | C．must | D．could |
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2 . — Can I smoke here, John?
— Go outside the hall if you ________.
— Go outside the hall if you ________.
| A．can | B．must | C．can’t | D．mustn’t |
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3 . —Sir, may I park my car here?
—Sorry, look at the sign. You ________ park your car here.
—Sorry, look at the sign. You ________ park your car here.
| A．couldn’t | B．may | C．mustn’t | D．needn’t |
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4 . —The paper cutting is pretty lively. Who made it?
—It _________ be Mary. None of us is able to do it except her.
—It _________ be Mary. None of us is able to do it except her.
| A．can | B．must | C．might |
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5 . The book ________ be Lucy’s. Look! Her name is on the book cover.
| A．may | B．mustn’t | C．must | D．can’t |
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6 . — Can children under the age of 12 ride bicycles in the city?
— No. According to the law, they ________.
— No. According to the law, they ________.
| A．may not | B．mustn’t | C．needn’t | D．shouldn’t |
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7 . All passengers ________ go through the safety check before they take a plane.
| A．should | B．must | C．needn’t | D．mustn’t |
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8 . — Must I return the book to the library before this Friday?
— No, you ________. You can renew it online.
— No, you ________. You can renew it online.
| A．need | B．needn’t | C．must | D．mustn’t |
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9 . —________ I return the books in two weeks?
—No, you don’t have to.
—No, you don’t have to.
| A．Must | B．Can | C．May |
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