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Computers are so popular in our country that every pupil knows _____ e-mails.

A. how can he send

B. how does he send

C. how to send

D. how sending

C

【解析】

试题分析:句意:电脑在我国如此流行以至于每个学生都知道怎么发送邮件。Know可以直接加宾语/加宾语从句(陈述语序)/加wh- to do。选出正确答案C。

考点:考查know的用法

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