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B.C.D.四个选项中，选出一个可以填入空白处的最佳答案。 ---I plan to go out for a bicycle trip to Longzhong. But I am afraid I don’t know the_____. ---A map is helpful, I think. A. time way weather place
Many countries are making rules to fight pollution. The pollution of the earth grows as fast as the world's population does. If people could go to work by bus or bike instead of car or motorbike it would be helpful in fighting against the problem of SO2. The problem of pollution is not so serious because there are not so many people living on the earth.
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map is helpful, I think. A. time way weather place
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