八年级英语选择,谢谢各位高手了

题目

八年级英语选择,谢谢各位高手了
The accidents happened ____ the same date.
A.in B.at C.for D.on
He was about to go to bed ____ the door bell rang.
A.while B.as C.before D.when
He went out to play ____ he had finished his homework.
A.when B.after C.before D.even if
第一题是A还是D?
第二题选B对吗?
第三题even if是什么意思?

答案

D
D be about to do sth when .是一个常用句型表示正在做...是..发生了
B 即使的意思