题目

高中英语语法单选题
(1)—how long do you support it__he arrived here.
—No more than half a week A.when B.before C.after D.since 正解为D,why还有after为什么不行
(2)—Has the boy who was made__use of realized his mistakes.
A.stealing B.stolen C.to steal D.for stealing 正解为C why?还有这题考什么
(3)—Is this researcher center __ you visited the modern equipment last year.
A.where B.that C.the one that D.the one where 正解为C为什么,where为什么不行,the one that什么时候用,和where有什么不同

提问时间：2020-12-26

答案

(1) 区别since和aftersince译为“自从”,表示时间段,侧重从过去某个时间开始一直到现在持续发生的动作eg：i have learned english for 5 years since i went to school.after 在.之后,表示时间点,侧重过去发生的动作...