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【题目】______ TV too much is bad to childrens health.

A. To watch B. Watching C. Watch D. Watched

【答案】B

【解析】句意:看电视太多对孩子们的健康不好。动词不定式作主语表示具体的、一次性的动作,动词的-ing形式作主语表示泛指的、抽象的概念。动词和过去分词不可以在句中作主语。故选B。

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