(单选题)

The schoolmaster could decide wisely whether to further employ the teacher by the end of the ______.

A.the first year

B.the second year

C.the third year

D.the fourth year

参考答案：D

参考解析：

细节理解题。根据第五段倒数第一句“The most important single influence is experience: first-year teachers are much less effective than others.”和第二句“The second year is significantly better, and by the fourth year, most teachers hit their stride”，可知在第四年教师的水平达到个人较高水平，明智的校长在第四年底再决定是否聘用教师。故选D。

知识点：