He was riding to school(_)he was hit by a car this morning怎么填_英语解答

He was riding to school(_)he was hit by a car this morning怎么填

人气：485 ℃　时间：2019-09-27 14:55:09

解答

绝对填when
这里的when=at that time
早上他正骑车去学校突然就被车撞了