问题 选择题

There are so many kinds of Mp3 in the shop. We can’t decide ________ .

A.what to buy

B.to buy what

C.which to buy

D.to buy which

答案

答案:C

本题的含义是我们不能决定买那个,疑问词which后加动词不定式to do代替从句,故本题选C。

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