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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