--- Did Peter e back early last night?
--- Yes. It was not yet eight o’clock he arrived home.
A. when
B. that
C. until
D. before
网友回答
(答案→)A. when
B. that
C. until
D. before
解析：句意：--皮特昨天晚上回来得早吗？--是的，还没有8点他就回来了。这里是when引导的定语从句，先行词是eight o’clock，关系副词在从句中状语，故选A。