题目

It is reported that two schools，_______ are being built in my hometown，will open next year.   A．they both       B．which both       C．both of them     D．both of which 答案：D 解析: both of which引导非限制性定语从句，which指代先行词schools,作of的宾语。they both和both of them都不能引导定语从句，所以是错误的。which both中的which不能修饰both，所以也是错误的。

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