题目内容
The teacher is ________ the blackboard.
[ ]
|
A ．in front |
B ．in the front of |
C ．in front of |
答案：C
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科学实验活动册系列答案题目内容
The teacher is ________ the blackboard.
[ ]
|
A ．in front |
B ．in the front of |
C ．in front of |
科学实验活动册系列答案