Therearesomanykindsofmobilephoneshere.Wecan’tdecide　　 ...

问题详情：

 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

【回答】

C

知识点：宾语从句

题型：选择题