【題目】There are more than 740 million Chinese ______ to second-hand smoking in public places now.

A. are being exposed B. to expose

C. having been exposed D. exposed

【答案】D

【解析】

試題分析：考查非謂語動(dòng)詞。本句考查非謂語動(dòng)詞擔(dān)當(dāng)后置定語。Expose所構(gòu)成短語為be exposed to，意為暴露于…、接觸到。本句用其過去分詞形式作后置定語修飾Chinese，表被動(dòng)關(guān)系。故選擇D。句意為：有7億4千萬中國人在公共場所接觸到二手煙。

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