We have achieved still greater success this year than we did last year.为什么句子中用did而不用have done或had done.

分类: 作业答案 • 2021-12-20 03:32:21

问题描述：

We have achieved still greater success this year than we did last year.
为什么句子中用did而不用have done或had done.

答

have received是现在完成时，后半句last year用过去式

答

有过去的时间状语last year

答

have received是现在完成时,后半句last year用过去式就可以了