Question

I don’t know ______ with this problem. It’s too hard.

A. which to do B. when to do

C. what to do D. how to do

 

Answer 1

C

【解析】

试题分析：句意:我不知道对于这个问题该怎么办，它太难了。which to do 做哪一个；when to do 什么时候做；what to do 做什么；how to do 怎样做。do with 处理，对待，跟what 连用。故选C。

考点：考查疑问词+动词不定式。