Telephone is a major instrument of communication, ______ us to hear as well as to see the speaker.

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问题 Telephone is a major instrument of communication, ______ us to hear as well as to see the speaker.

选项 A、permitted
B、being permitting
C、to permit
D、permitting

答案D

解析 电话是一个主要的交际工具,它使我们既能听见对方讲话又能看见说话人。本题考查分词短语作状语的用法,permit作vt.时,意为“准许,容许”,与主语telephone构成了施动关系,故用现在分词的形式。
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