--- Must I stay at home, Mum?
--- No, you_____
A.needn’tB.mustn’tC.don’tD.may not
A

試題分析:句意:--我必須呆在家里嗎?--不,你不必。mustn’t禁止;may not可能不;needn’t不必。對于must開頭的一般疑問句,如要作否定回答,不用mustn’t,可用needn’t.
點評:本題難度適中。情態(tài)動詞是高中階段的重難點之一,需要考生熟記它們的用法,在各類考試中經(jīng)常出現(xiàn)。
即學(xué)即練:We _____ think only of ourselves.
A. needn’t    B. mustn’t     C. don’t     D. may not
解析:B。句意:我們可不能只考慮自己。
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