ldcf.net
当前位置:首页 >> 什么时候hAvE和hAs要变形? >>

什么时候hAvE和hAs要变形?

主语是三单时变成has.过去式变成had.现在进行时变成having.现在完成时变成had

1、I am afraid that there is very little (profitable) _profit__ in the transaction. 恐怕此次的交易利很保 2、Our students have a lot of difficulties in (communication) __communicating_ with foreigners. 我们的学生跟外国人沟通有困...

Summary Gregor Samsa awakes one morning to find that he has been inexplicably transformed into a giant insect. He has also slept late. His parents and his sister Grete try to rouse him so he can make it to his dreary job as a t...

网站首页 | 网站地图
All rights reserved Powered by www.ldcf.net
copyright ©right 2010-2021。
内容来自网络,如有侵犯请联系客服。zhit325@qq.com