we should clean the classroom every day该被动语态一般疑问句

We should keep the nice room clean The first thing ( ) we should do isto clean the room. The first thing ( ) we should do isto clean the room. we should keep the water clean(改为一般疑问句） We should keep the water clean 的汉语意思是? we should help——(clean) the classroom we should keep the river clean.(一般疑问句） We should make the school ( )A.cleaning B.clean you should clean the we should make the classroom___every day.A.cleaning B.to clean C.cleans D.clean We should keep the environment clean and tidy的同义句 The environment should ____　____　　clean andtidy by us. We should keep the environment clean.We must not pump s___ into the river it describes the measures we should take to ensure that we drink clean water.看不懂 We should keep our rooms clean and the air fresh all the time. We should pick up the i_____ to keep the streets clean. We should keep the toilet clean and flush the toilet 中文意思 We should keep our classroom _______(clean). We should clean our h[ ]before meals