Sue sits___ the back ___our classroom英文填空 快一定要正确 没有把握请说明 特别有把握也请说明

at of
肯定正确
苏坐在我们教室的后面

at of ,确定

Sue sits( at) the back (of) our classroom

in of

at of

Sue sits_in__ the back _in__our classroom

at the back of
苏坐在我们教室的后面