问题
选择题
Our teacher is standing________ the blackboard.
A. in the front of B. in front C. in front of
答案
答案：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
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