Something has to be done to stop our rivers from being polluted,________?

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• ____ has been done to prevent the water in the lake from being polluted.
• ___be done to stop the river from being polluted .A.what do you suggest.B.what do you suggest that should 提问：为什么选A不选B
• 主谓一致 1,None of them is against the plan,_____?A：is he B：isn't he C:are they D：aren't they 2,The students in our class each_____an English dictionary.A:are having B:had C:did D:has been3,Little______done to prevent the air from being polluted.Much ______done to fight against pollution.A:has been;have been B:have;hasC:has been;has been D:have been;have been这三道题不懂的,都是选哪个呢?以及为什么选它?第二题的答案为D：给出的选项弄错了，正确为：A:are having B:had C:has D:have
• ____ has been done to prevent the water in the lake from being polluted.A.LittleB.FewC.OtherD.Many这道题的答案给的是A,为什么选A B、C、D为什么错了?
• 句子分析：Little has been done to prevent the air from being polluted.这里的being是不是名词?作定语修饰polluted?
• We should try every means to ____ our environment from being polluted.为什么填stop?填protect不对吗?
• Something has to be done to stop our rivers from being polluted,________?
• ___be done to stop the river from being polluted .A.what do you suggest.B.what do you suggest that should 提问：为什么选A不选B
• H_____ of people have got cancer in the same village. Something should be done to stop the number from being larger and
• Something must be done to stop people from _____the underground water.A pollute B polluted
• 各位大哥大姐,如果能帮小妹答出这道题,
• 因式分解4^2006+12*4^2005-4^2007