Thestudentsaidtherewereafewpointsintheessayhe　　　　imposs...

問題詳情：

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都是一般過去時, 所以“他發現”這一動作發生在“説”之前, 由於“説”用了一般過去時, 所以“發現”要用過去完成時。

知識點：過去完成時及其被動式

題型：選擇題