Question

【题目】There are so many kinds of mobile phones here. We can’t decide _____.

A. what to buy B. to buy what

C. which to buy D. to buy which

Answer 1

【答案】C

【解析】

试题分析：句意：这里有很多种类的移动电话。我们不能决定买哪一种。在疑问词可以跟动词不定式构成动词不定式短语，在句中作宾语。结合语境，所以选C。