Did you see the accident ________when you were walking past?A.to _英语解答

Did you see the accident ________when you were walking past?
A.to happen
B.happen
C.happened
D.is happening
选哪个,为什么
要专业,还有哪种情况和这个一样,举个例子.

人气：355 ℃　时间：2020-03-28 05:23:51

解答

Did you see the accident ________when you were walking past?选B.happensee sb do sth 所以接原型happen
而意思上是当你正经过学校门口时看见意外已经发生了吗? 望采纳!