作业帮看看这句英语句子有什么错误
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/07/14 19:36:53
看看这句英语句子有什么错误
Mary must be complete her homework cat on uncle's advise.
哪里错了?
Mary must be complete her homework cat on uncle's advise.
哪里错了?
Mary must be complete her homework cat on uncle's advise
需要用must have completed.一定已经做好了---
must + be + done(动词的被动式)表示某件事一定是被做完了,显然mary是人,是主动做作业.
must + do sth表示必须做某事
must + have done表示一定已经作了---
需要用must have completed.一定已经做好了---
must + be + done(动词的被动式)表示某件事一定是被做完了,显然mary是人,是主动做作业.
must + do sth表示必须做某事
must + have done表示一定已经作了---