【題目】As to the long-term effects of global warming some believe that the damage has been done, ______________________.

A. otherwise we take steps to make up now

B. now that we take steps to make up

C. whether we take steps to make up now or not

D. unless we take steps to make up now

【答案】C

【解析】

試題解析：考查選擇疑問句。句意：針對全球面暖帶來的長期效應(yīng)，一些人認(rèn)為不管現(xiàn)在我們采取或者不采取措施，傷害已經(jīng)造成了。根據(jù)句意理解可知此處表達(dá)的意思是此處應(yīng)該用一個選擇疑問句來讓句意變得完整。而whether…or not是固定搭配，故選C。

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