1 . —Mum, may I play outside now?
— No, you ___________. You have to clean your room first.
— No, you ___________. You have to clean your room first.
A.shouldn’t | B.needn’t | C.mustn’t | D.won’t |
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2011·山东淄博·一模
2 . You _____ read a book in the sun—it'll do harm to your eyes.
A.couldn't | B.wouldn't | C.needn't | D.mustn't |
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