--- Did Jack e back early last night?
--- Yes. It was not yet eight o’clock he arrived home.
A. before
B. until
C. when
D. af ter
网友回答
A. before
B. until
(答案→)C. when
D. af ter
解析：考察时间状语从句。句意：—Jack昨天晚上回来的早吗？—是的，当他回来的时候还没有到8点。本句中的when he arrived home.是一个时间状语从句。本题容易错选A项，但是ABD三项与句意不符。