Question

.It is reported that two schools,_______fell into ruins in the earthquake, are being rebuilt and will be open next term.

A．they both

B．both of which

C．which both

D．both of them

Answer 1

B

考查非限制性定語從句。句意“據報道，兩所學校在地震中稱了廢墟，它們正在被重建，下個學期投入使用。”題目所給范圍是兩者，故用both，意為“兩者都”；根據逗號可知，是非限制性定語從句，排除A、D；both of which相當于and both of them。故選B。