They must keep their hands behind their backstheir backs是宾补吧their hands 是keep的宾语吧?

They must keep their hands behind their backstheir backs是宾补吧their hands 是keep的宾语吧? They must keep their clothes______.A.clean B.to cleanC.cleaningD.bo cleaning You must keep ( ) clean and tidy.a.they b.them c.their d.theirs 为什么 如题 When they pass tne coin ,other students must keep their eyes ____A、close B、closing C、closed D、closes 改错题 They keep their room opened. They must have finished their homework,_______. The students must keep their classroom ____.to clean cleaningcleancleans Young people think that living in the 21 st century ,they must keep up with the time .They don’t want to fall(5) .Besides,they think that they need to keep in touch with their classmates,so they need mobile phones .They also like to (6) the pop mus They usually keep their classroom clean .clean做什么成分? they keep their secrets to themselves为什么用介词“to” should parents make their children promises they can't keep? keep their the children must close their eyes now =the children must keep their eyes closed now 为什么用closed They must finsh their homework on Friday.改为同义句They ( ) ( ) finish their homework on Friday. 1.They must [keep their hands buhind their backs].请把[]里面的句子进行提问2.Please look after yourself and keep fit.（变同义句）Please _____ yourself and keep fit.3.Could you help me study the English?（变同义句）Could you help They must finish their work before lunch 改为否定句 They must do their homework after school改为同义句 they must be out of their minds 翻译