We must ___(keep) the classroom clean.

We must ___(keep) the classroom clean. We must __(have) enough exercise ___(keep) us healthy we must keep our classroom( ). We must keep ____(health) we must keep happy同义句转换we must keep happy___is____ ____ keep happy We must ___(be) careful. We must keep our classroom _________(tidily) 初一英语 we must keep our classroom_______. What must we have to keep healthy? We must keep our street s_______. 改错 We must keep the classroom cleanly. We must keep the window______(open). we must keep the ( )on the road we must keep the( ) on the road we must keep( ) in the hospital We must keep our room clean.Dirt ...We must keep our room clean.Dirt and diseases go ___,you know.A.from time to timeB.hand in handC.step by stepD.up and down这道题选B,怎么翻译呢?Thanks! we should keep the air ___ ___ ___ (清新) we must keep the reading room quietly还是we must keep the reading room quiet