you must finish the work_______ seven o'clock this eveningA.by B.until C.to D.in选哪个?为什么?原因!

变被动语态：You must finish the work. you must finish at ------[little]most part of the work Must i finish the exercise this afternoon?Yes,you ______ Lily,you must finish ___(write)your report beforLily,you must finish ___(write)your report before the meeting begins Before you go out you must finish the work.must换成haveto对吗? You must try your best () the work next week.A finish.B to finish.C finish.D finishes You must finish the work at the end of the week.（改为被动语态） 如果问“you mean we must finish the task before the manager returns?”该怎样 Must I finish the work today?的否定回答-Must I finish the work today?-No,you don't ____ ____(两空) You must finish your work a___ You must finish your homework （one） You must finish it ____(care) You must finish the article before next year改为被动语态 you must finish the homework in two hours改被动语态 连词成句 finish/must/my/nine o'clock/l/before/hom连词成句finish/must/my/nine o'clock/l/before/homeworkstreet/must/you/play/in/football/not/thesunday/you/the/in/must/compete/on/marathon/not You must finish the work before you go to bed .改为同义句You __ go to bed __有 finish the work .You __ go to bed __ you finish the work . 为什么是you must finish doing your homework,而不是you must finish your homework? Before you go out you must finish the work.句子这样写对吗?用加逗号吗