There is a blackboard____our classroom.Our teacher was stauding the blackboard at this time yesterday.
问题描述：
There is a blackboard____our classroom.Our teacher was stauding the blackboard at this time yesterday.
A.in front of;in the front of B.in the front of;on C.in the front of;in front of D.in front of;on
答
c
教室前面有黑板,老师在黑板前面讲课.