题目内容
At proper horse races everyone has already studied the form of the horse ______.
A. behind time B. in progress C. in advance D. in time
【答案】
C
【解析】略

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题目内容
At proper horse races everyone has already studied the form of the horse ______.
A. behind time B. in progress C. in advance D. in time
C
【解析】略