You must clean the classroom, you? 中间要填什么

you must clean the window对clean the window提问 You must keep the bedroom ______(clean) You must clean the classroom.(改为祈使句) You must clean the classroom, you? 中间要填什么 You must clean the floor 改为同义句( ) ( )the floor you must clean the classroom,you?a.needn’t b.mustn’t c.can’t d.don’ You can't go home now.you clean the classroom.A.must.B.can.C.need为什么选A You will ( )clean your own boots when you jion the anmyA have B have to C must You will ( )clean your own boots when you jion the anmyA have B have to C must （） l clean the room?yes you A Must can B Must may C Need need D Nees must 选哪个?为什么 Must I clean the room now No you don't_______ You must clean the house now 改为被动语态 must i clean the classroom right now?No,you ( ) Finally,you must r______to keep the rivers and lakess clean. Must we clean the classroom now?No,you needn't.It ______ after school.A.may clean B.must clean C.need be cleaned D.can be cleaned[正确答案是D,为什么不选C] must we clean the room right now?No,you ______.You ______clean it after lunchA.mustn't;can B.needn't;must c.practise D.be practiced ____ I clean the door?no,you ___.A.need;mustn't B.must C.may D.could The students must keep the classroom ____everyday.A.cleans B.clean C.cleaning D.to clean