题目内容

【题目】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】

试题分析：考查同根动词、名词及短语。react（动词）反应--- reaction（名词）回应，反应；react with同---其反应；react to作出反应。化学课是关于金属和氧在一起的反应，老师展示给我们铁与水和空气是怎样起反应的。故选D。

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