I have heard a lot of good things about you I came back from abroad.A. sinceB. untilC. bef

问题补充：

I have heard a lot of good things about you I came back from abroad.

A. since

B. until

C. before

D. when

答案：

(答案→)A. since

B. until

C. before

D. when

解析：

试题分析:考查连词用法。A自从；B直到；C在。。。之前；D当。。。时候。根据前面时态have heard可以判断后面用连词since，表示从过去某时间开始一直延续到现在的情况。句意：自从我在国外回来后我听到了很多关于你的好事。