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,/
答案:B
题目分析: 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。