Do you know the diffculty he had ____the work.
问题描述:
Do you know the diffculty he had ____the work.
A.on finishing B.to finish
c.finishing D.have finished
答
C.句子中的he had 做定语修饰diffculty(定语从句)把he had 去掉,再看看这个句子:Do you know the diffculty ____the work.在这,考察diffculty的一个用法:diffculty (in) doing sth.其中的in可以省略.所以选择C...