题目内容
-Can you go swimming with us this afternoon?
-I’d like to, but I ________ take care of my little sister at home because my mother is ill.
- A.need
- B.must
- C.should
- D.have to
D
此题考查情态动词的用法.need表“需要”.作情态动词常用于疑问句或否定句中.should表“应该”,must或have to表“不得不,必须”.根据句意应用must或have to.又因为must表客观,have to表主观,根据“妈妈病了”,所以选D.
此题考查情态动词的用法.need表“需要”.作情态动词常用于疑问句或否定句中.should表“应该”,must或have to表“不得不,必须”.根据句意应用must或have to.又因为must表客观,have to表主观,根据“妈妈病了”,所以选D.
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