This research has done much to advance our understanding of language learning.

　　這項研究大大提高了我們對語言學習的認識。

　　He has done sterling work on the finance committee.

　　他在財務委員會工作優(yōu)異。

　　This man has done nothing wrong.

　　這位男子沒有做過不正當?shù)氖隆?/p>

　　Any reasonable person would have done exactly as you did.

　　任何有頭腦的人都會完全照你那樣去做的。

　　He said I must have done something bad to deserve it.

　　他說我肯定是罪有應得。

　　You shouldn't have done it without consulting me.

　　你不該不和我商量就做了這件事。