题目内容：

It is you turn to clean room 如果主语是his and their 其他有什么变化

优质解答

你的问题不明白.这句话首先不对,应该是：It is your turn to clean room.这句话it是形式主语,真正的主语是不定式to clean room.也就是To clean room is your turn.为了避免头重脚轻 才用it做形式主语.
还是你要写成It is his turn to clean room或者It is their turn to clean room.
都是对的.主语it,后面一直用is.