【正确答案】 D

【答案解析】你搬出房间时，要把房间钥匙交给我。A．hand in意为“上交”，例如：The students were required to hand in their homework beforeFriday．学生们被要求在星期五之前上交家庭作业。B．hand out意为“分发”，例如：The teacher handed out the examination papers．老师分发了试卷。C．hand down意为“把……一代代传下去”，例如：The custom is handed down from the past．这个习俗是过去传下来的。D．hand over意为“交出，移交”(如本题)，例如：He handed over his business to his son．他把生意交给他的儿子打理。