【題目】The air pollution is a serious_________in our country. Our government is trying to solve it.

A.choiceB.programC.problem

【答案】C

【解析】

句意:空氣污染在我們國(guó)家是一個(gè)嚴(yán)重的問(wèn)題,我們的政府正努力解決它(空氣污染問(wèn)題)。

考查名詞辨析。choice選擇;program節(jié)目;problem問(wèn)題。根據(jù)第二句中solve可知,此處是“解決問(wèn)題”,problem是可數(shù)名詞,用在此處符合題意。故選C。

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