Question

--Jim, did you take out the trash just now?

   --No. By the time I came home it         .

A. have been taken out      B. had taken out          C. had been taken out

Answer

C

【解析】

试题分析：take out拿出，带出，by the time直到，came home是过去时，扔垃圾是发生在came之前的动作，过去完成时表示的是过去的过去。又有be+动词过去分词构成被动语态。had been+过去分词，含有被动语态的过去完成时。句意：Jim，刚才是你把垃圾扔了吗？不，我回来的时候垃圾已经被扔了。故选C。

考点：考查被动语态及过去完成时的用法。