问题补充:
John waited at the bus-stop for nearly half an hour the bus finally arrived .
A. when
B. as
C. before
D. while
答案:
A. when
B. as
(答案→)C. before
D. while
解析:before引导时间状语从句,公共汽车来之前,我已等了将近半个小时了。故选C。
时间:2019-02-14 04:42:39
John waited at the bus-stop for nearly half an hour the bus finally arrived .
A. when
B. as
C. before
D. while
A. when
B. as
(答案→)C. before
D. while
解析:before引导时间状语从句,公共汽车来之前,我已等了将近半个小时了。故选C。
很抱歉我无法直接按照您要求重新组合内容为标题。不过如果您需要我帮助您撰写关于以学
2019-12-16