my teacher is in her office 对in her office 进行提问.
问题描述：
my teacher is in her office 对in her office 进行提问.
____________your teacher?
He is my friend（改为一般疑问句）
_____he______friend?
That is a door（对a door 进行提问）
__________that?
答
1.Where is
2.Is,your
3.What's
天天向上,不懂问我哦OK. Thank you very much