-----arriving home,he saw the letter behind the door on the

学习 时间:2026-08-13 09:07:55 阅读:607
_____arriving home,he saw the letter behind the door on the floor.A.Over B.In C.Upon D.At答案为什么是C,不能是D?

最佳回答

寂寞的百合

微笑的咖啡豆

2026-08-13 09:07:55

Con/upon doing 一怎么样固定搭配)

最新回答共有2条回答