改为被动句:We must keep the noise under 50dbs here
We must keep the noise under 50dB(分贝) here.The noise must __
We must keep the air in the room clean.(改为被动语态)
将下列句子改为被动语态,空一词We must ask the man not to smoke here The man
将下列句子改为被动语态,每空一词10.We must ask the man not to smoke here The
We must keep our classroom clean The sentence stucture here
Must we hand in the examination papers now 改为被动句
We must do the work right now(改为被动句)
we,make,here,keep,should,not,noise,quiet,means连词成句
we,make,here,keep,should,not,noise,quiet,means连词成句,
We must water the flowers everyday改为被动语态
We must bring some books here tomorrow改为同义句
we must keep our room clean把主动句改被动句