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    【題目】Everybody should make _____ effort to reduce pollution and create a clean environment.

    A.aB.anC.theD.不填

    【答案】B

    【解析】

    句意:每個(gè)人都應(yīng)該努力減少污染,創(chuàng)造一個(gè)清潔的環(huán)境。

    考查冠詞。a一個(gè),不定冠詞,用在輔音音素開頭的單詞前;an一個(gè),不定冠詞,用在以元音音素開頭的單詞前;the定冠詞,表特指,根據(jù)固定搭配make an effort“作出努力”effort是以元音音素開頭的單詞,所以前面要用不定冠詞an,故選B。

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