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【題目】This chemical class is about the ______ of metals with oxygen and our teacher shows us how iron ______ air and water.

A. react; reacts with B. react; reacts to

C. reaction; reacts to D. reaction; reacts with

【答案】D

【解析】

試題分析：考查同根動詞、名詞及短語。react（動詞）反應--- reaction（名詞）回應，反應；react with同---其反應；react to作出反應�；瘜W課是關于金屬和氧在一起的反應，老師展示給我們鐵與水和空氣是怎樣起反應的。故選D。

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