I have heard a lot good things about you I came back from abroad.
A. since
B. until
C. before
D. when
网友回答
(答案→)A. since
B. until
C. before
D. when
解析：根据句意“自从你从国外回来我听到很多关于你的好评”，主句是现在完成时从句是一般过去时所以选since。until是直到……才；before 在……之前；when 当……时候。
【考点定位】考查状语从句引导词