The chinese teacher is standing ( )the back of the classroom用适当的介词填空The chinese teacher is standing ( )the back of the classroom

问题描述:

The chinese teacher is standing ( )the back of the classroom
用适当的介词填空
The chinese teacher is standing ( )the back of the classroom

at
at the back of 在。。。的后面,固定搭配

at

at
at是跟着back的,表示小地点