The comments on the film this is one example are very sharp.A. of what B. for thatC. of

问题补充：

The comments on the film, this is one example, are very sharp.

A. of what

B. for that

C. of which

D. for which

答案：

A. of what

B. for that

(答案→)C. of which

D. for which

解析：考查定语从句：句意：这个电影的评论很尖锐，这是其中的一个例子。定语从句应该是由this is one example of thecomments，改过来的，用of which引导定语从句，选C。