【題目】---I think English is ____unimportant subject.

---I don’t think so. It is ____useful tool when we talk with foreigners.

A. a; an B. an; a

C. a; a D. an; an

【答案】B

【解析】句意：---我認(rèn)為英語不是重要的學(xué)科。---我不那樣認(rèn)為。當(dāng)你和外國人交談的時(shí)候它是很有用的工具。此題考查冠詞，因?yàn)?/span>useful是以輔音音素開頭的，故用a。unimportant是以元音音素開頭的，故用an。根據(jù)句意，應(yīng)選B。

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