students must hand in their homework on time every day.(改为被动

students must hand in their homework on time every day.(改为被动 you must hand in your homework on time 改为被动语态 students must finish their homework every day改为一般疑问和否定句 you must hand in your homework now 改为被动语态 1.mike should__his homework on time every day.A.hand in B.ha 改为祈使句 (1)You must hand in your homework on time.(2)You mustn 把主动语态改成被动态students must clean their classriom every day Students must be clean their classroom every day 如何变为被动语态 We must hand in our homework ________( in time,on time). you must hand in your history homework by the weekend.(改为被动语 Chinese students do much homework every day.这句怎么改为被动语态 the students do their homework at home every day改为一般疑问句和否定句