It is a difficult problem for high school studentsthey can properly use the InternetA. wh

发布时间:2020-08-17 08:50:06

It is a difficult problem for high school students    they can properly use the Internet.
A. what
B. where
C. when
D. whether

网友回答

A. what
B. where
C. when
D. whether
解析:考查主语从句。句意:对于高中生来说,他们是否能正确的利用网络是一件很难的问题。句子中it 是形式主语,真正主语是whether引导的主语从句,根据句意得出选D项。          
考点 : 考查主语从句
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