【題目】— There is too much air pollution now. We should it and protect our environment.

— Yes. We can plant trees. They are to the air.

A. be strict about; grateful B. fight against; helpful C. take care of ;useful

【答案】B

【解析】

句意：——現(xiàn)在有太多的空氣污染，我們應(yīng)該抵制它，保護我們的環(huán)境�！堑�，我們能種樹，它們對空氣是有幫助的。A. be strict about;對---嚴格， grateful感激的；B. fight against抵制，對抗，; helpfu有幫助的； C. take care of ;照顧，useful有用的；根據(jù)too much air pollution可知是抵制它，根據(jù)We can plant trees可知是對空氣有幫助；故選B

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