【題目】We are faced with the problem _________ we should do with so much pollution.

A. what B. why C. that D. That

【答案】A

【解析】試題分析：句意：我們正面臨著怎樣處理如此多的污染問題。這里是一個(gè)同位語從句，根據(jù)從句中do with可知這里需要一個(gè)賓語，且表示物，那么what最佳。

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