Question

He ________ all his aims. But his efforts in the past few years have been praise-worthy.

A. could have achieved              B. wouldn’t have achieved

C. must have achieved               D. may not have achieved

 

Answer 1

【答案】

D

【解析】

試題分析：考查情態動詞的完成式：句意：他可能不會達到所有的目標，但是他過去幾年的努力是值得表揚的。could have done，過去可能做了…，wouldn’t have done過去本來不會做而做了， must have done過去一定做了，may not have done過去可能不會做，選D符合句意。

考點：考查情態動詞的完成式