must have done和must be在处于被动语态时的区别比如Over a hundred people must have been driven away from their homes by the noise.(原句）如果是Over a hundred people must be driven away from their homes by the noise.表达效果有

must be done和 must have done区别 must have been done must have done must have done和must be的区别?权威 must have done和have done有什么区别 must be must have done 区别 that must have done the must have been done/must be done求解两者异同 must have done 和 should have done 的表示推测区别?must have done 和 should have done 都表示推测时,区别是什么? can't have been和can' have done有什么区别或者must have been和must hane done;may have been和may have done must have been与must have done的区别? must have done 和must have domust have done是对过去的肯定猜测must do 是对现在的肯定猜测吗?一定是 “肯定 ” could/should/must/.加have done和have been done区别 could have done sth 和must have done sth 的区别是什么 should have done .would have done. must have done三者之间的意思和用法上有什么区别? must have done 表示猜测 那 must do 表示什么 must have done 的反义疑问句怎么说 He must have done nothing but ____ Must Have Done Something Right 歌词