怎样用现在完成时造句

问题描述

精选答案

1、I've never heard of anyone doing that.我从未听说有人做那种事.

2、l have played the piano .我已经弹过钢琴了.

你（已经）吃午饭了吗 我刚刚吃过.（现在我不饿了）

4、He has taught here since 1981 .他自1981年就在这儿教书.（可能还要继续教）

6、I have been to Beijing twice.我去过北京二次.

7、We have already finished our homework.我们已完成作业了.

8、They haven't finished their homework yet.他们还没有完成作业.