为什么是you must finish doing your homework,而不是you must finish your homework?

为什么是you must finish doing your homework,而不是you must finish your homework? change the following sentences into negative forms. 1you must finish your homework today.change the following sentences into negative forms. 例1：you must finish your homework today. 想问一下：什么是转化为消极句型?上面 You must finish your work a___ You must finish your homework （one） You must finish it ____(care) 英语翻译However tired you are,you must finish the work in time.这句里为什么是HOWEVER?HOWEVER是但是可是的意思,整句怎么翻译,为什么不用ALTHOUGH啊? you must finish doing your homework first的句子结构A.S+VB.S+V+DOC.S+V+PD.S+V+IO+DOE.S+V+DO+OC为什么是B When you finish doing your homework ,you must c_____ it. If you finish the work on time.you ___well.为什么是will be paid 变被动语态：You must finish the work. You must finish yiour homework on time 改为祈使句 you must finish your homework first.否定句 Must I finish it now?No,you ___. you must finish at ------[little]most part of the work Must i finish the exercise this afternoon?Yes,you ______ Do you must try____work tomorrow?是to finish 还是finishing 反义疑问句you must finish it now,____________you? You must finish it __(care)Cats like chasing__(mouse)