Thestudentsaidtherewereafewpointsintheessayhe　　　　imposs...

问题详情：

The student said there were a few points in the essay he　　　　

impossible to understand.

A. had found                            B. finds

C. has found                            D. would find

【回答】

 A。said和were都是一般过去时, 所以“他发现”这一动作发生在“说”之前, 由于“说”用了一般过去时, 所以“发现”要用过去完成时。

知识点：过去完成时及其被动式

题型：选择题