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

学习 时间:2026-04-01 06:53:45 阅读:9778
_____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?

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体贴的小土豆

勤奋的长颈鹿

2026-04-01 06:53:45

Con/upon doing 一怎么样固定搭配)

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