we must s______ the earth and keep it clean and beautiful

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• ——Where is Alice?——I think she is in the dormitory.I saw her __接着 ：(pass) our classroom just now .② We must keep the classroom ____ (clean).Because we're going to have an English party tomorrow.都是根据 适当形式填空其实挺简单的就是忘了知识点 不知到底是 see sb to do sth还是see sb do sth ② keep sth clean 还是keep sth to clean还是 keep sth cleaning
• We must keep our classroom (clean) every day
• we must keep the room clean.clean为什么不加ing
• 根据句意及首字母提示写单词 We must make some r____ to keep the computer room clean and tidy.
• we must keep sea water clean and stop___it(pollute)
• we have only one earth we must ()it a more beautiful place for living.A.notice B.find C.get D.make
• we must try our best to keep environment clean句子成份划分
• We must keep the air in the room clean.(改为被动语态）
• the earth is our home.we must ___the land,air,and water clean.为什么是keep而不是get
• we must keep the classroom______- A.clean B.to clean C.cleaning D.cleaned
• They help the police to catch robbers and find lost people find lost people为什么是过去是不是完成时丢失的人不是对现在有影响吗?而且过去是不是已经结束了的意思吗?过去丢失的人没结束呀?
• The story ------- in Japen before 1997.A.is happened B.happened C.happens D.was happened