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!
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!