军考英语：易混英语词汇辨析：in front of, in the front of

　　31. a number of, the number of

　　a number of 许多，谓语动词用复数;

　　the number of… ……的数目，谓语动词用单数。例：The number of students is increasing.

　　32. in front of, in the front of

　　in front of 范围外的前面;

　　in the front of 范围内的前面 例：In the front of the room sits a boy.