在他的房间英文

In his roomIn his room, we found that the console.在他的房间里，我们发现了游戏机。

in their room 正确 they 是主格，不能放在room 前要用形容词性物主代词 their 表示“他们的” 祝你学习进步，更上一层楼！ (*^__^*)不明白的再问哟，请及时采纳，多谢！

in his bedroom.

in their room对。 they 不可以和roon 直接搭配，而their是形容词性物主代词，可以和名词room搭配。

in their room

in his room 在他的房间