must have done 的反义疑问句怎么说

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/10 19:59:54

当must后接完成式(即must + have + 过去分词),作“一定已经”讲,表示对过去的推测时：
a.若有表示过去的时间状语,则疑问部分用didn’t / wasn’t / weren’t提问.如 She must have been here yesterday,wasn’t she?/ You must have met her this morning,didn’t you?
b.若没有表示过去的时间状语,则疑问部分用haven’t / hasn’t提问.如 He must have been to Beijing,hasn’t he?/ The dogs must have eaten the food,haven’t they?
希望我的回答能够帮到你,

must have done的反义疑问句 must have done 与 may have done 的反义疑问句 must的反义疑问句反义疑问句的问题1.如果出现must have 怎样改反义疑问句,比如he must have read the boo must have done的反意疑问句问题 must的反义疑问句问题. 关于must的反义疑问句情态动词+have done变反义疑问句时的注意事项和规则有哪些 must have done的用法金黄色英语怎么说?含有have的反义疑问句怎么回答 You have done the work.改为反义疑问句 the children have never done that before改为反义疑问句