You must do something to help your friend.(改成否定句）You ____ _____ _____ to help your friend.

Must you do not 布兰妮有首歌叫do somethin还是do something? Are't you somethin' to admire you must do like me. But you must do exercise. change...yes,you must do it!must do! you must do it by___(you) you must do you things y... DO YOU HAVE ------TO EAT?I’HUNGRY A.ANYTHING NICE B.NICE ANYTHING C.SOMETHING NICE D.NICE SOMETHIN问选那一个? You must do exactly what I tell you to do You must do your homework(祈使句) You must do your homework(祈使句) You must _____(do) your homework carefully. what must you do at a red SO DO I,YOU MUST BE HAPPY what must you do to be safe? Belive yourself,long You must do Must you do that?同义句?