yesterday she sold the watch her mother ____her as a birthday pre_英语解答

yesterday she sold the watch her mother ____her as a birthday present
A:had sent B.has sent C.sent D.were sending
选什么,为什么?

人气：190 ℃　时间：2019-10-03 22:58:23

解答

A
表示过去的过去,用过去完成时.昨天已经是过去了,而买礼物的时间比昨天还后,所以是过去的过去.