In the end , he turned history teacher, who had good knowledge of history, especially history of Ming Dynasty.
A. a,/,the, a
B. /,a ,the, the
C. /,a, the,/
D. a, a, the,/
网友回答
A. a,/,the, a
(答案→)B. /,a ,the, the
C. /,a, the,/
D. a, a, the,/
解析： 句意：最后，她成了一个精通历史的历史老师，尤其是明代的历史。第一空不填，因为turn表示“变成”后面接名词不加冠词，第二空填a， have a good knowledge of精通，第三空填the，这里是特指“明代的历史”，根据句意选B。