(2014·貴州師大附中質(zhì)檢)It was half a year________my good friend returned to his hometown.

A．before　B．since

C．that　D．when

 

A

【解析】考查狀語從句。句意為：半年后我的好朋友回到了他的家鄉(xiāng)。根據(jù)固定句型：it is＋一段時間＋before...意為“多久以后……”，主從句時態(tài)一致。Since也有類似的句型，但是主從句的時態(tài)不一致，故選A。

答案：　A

 

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