Doctors say that exercise is important for health, but it _______ be regular exercise.

A.can              B.will              C.must             D.may

 

【答案】

C

【解析】

試題分析:考查情態(tài)動詞:A. can能 B. will將會C. must 必須D. may可以,句意:醫(yī)生說,鍛煉對健康很重要,但一定要是定期鍛煉。選C。

考點:考查情態(tài)動詞用法

點評:情態(tài)動詞的詞義辨析要記清基本含義和一些特殊的用法,做題時要放在上下文語境中進行, 特別注意說話人的語氣。

 

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