-Where are your brothers?in the classroom.A. He’sB. She’sC. TheyD. They’re

---Where are your brothers?
--- in the classroom.
A. He’s
B. She’s
C. They
D. They’re

A. He’sB. She’sC. They(答案→)D. They’re解析：根据语境where are your brothers?可知此句的主语是第三人称复数形式，故用人称代词they，其谓语动词要用are，缩写为they’re，故选D。

我明天再问问老师，叫他解释下这个问题