1．You       return the book now．And you can keep it till next week．（　　）
A．needn'tB．can'tC．mustn'tD．won't

分析 你現(xiàn)在不必還這本書．你可以把它保存到下一周．

解答 答案是A．本題考查情態(tài)動詞辨析；needn't不必；can't不可能；mustn't禁止；won't不會；根據(jù)下文"你可以把它保存到下一周"推斷你現(xiàn)在"不必"還書，所以答案選擇A．

點評 要在正確理解情態(tài)動詞的基本含義的基礎上，整體理解語境中的情感態(tài)度，做出合理的判斷．

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