Question

Our teacher is standing______ the blackboard.

1. A.
   in the front of
2. B.
   in front
3. C.
   in front of

Answer 1

C
in front of，表示在···外部的前面，在···内部的前面用in the front of，而B项答案本身为错误的，根据题意，可知在黑板前面用in front of故选答案为C