当前位置: > they must have lost your letter in the post....
题目
they must have lost your letter in the post.
They must have lost your letter in the post
改被动语态
your letter must have been lost by them in the post
1、有MUST的是什么时态.
2、MUST后不是直接跟动词原型吗.

提问时间:2020-10-16

答案
must have done sth.对过去情况的推测,本身有可能是过去时,也有可能是完成时.意为:肯定
如:
He has been to Beijing .-----He must have been to Beijing.(完成时)
It rained last night----It must have rained last night (过去时)
have 也是动词原形.
举一反三
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
奥巴马演讲不用看稿子.为什么中国领导演讲要看?
想找英语初三上学期的首字母填空练习……
英语翻译
1,人们染上烟瘾,最终因吸烟使自己丧命.
版权所有 CopyRight © 2012-2019 超级试练试题库 All Rights Reserved.