____you____your book yet?Yes,I____it an hour ago.

问题描述:

____you____your book yet?Yes,I____it an hour ago.
A.Did...find,found
B.Have...found,found
C.Did...find,have found
D.Have...found,have found原因、、

答案选 b
解析:问句中有时间状语yet应该用完成时,而回答中有an hour ago应该用过去时