In march Medvedev was elected president of Russia­­­­— position he

问题补充：

In march,, Medvedev was elected president of Russia­­­­— position he will hold for 6 years.

A. a; a

B. 不填；a

C. the; a

D. the; the

答案：

A. a; a

(答案→)B. 不填；a

C. the; a

D. the; the

解析：考查冠词。_ president of Russia某一范围内独一无二的职位前，不加冠词，所以不填； position he will hold for 6 years.一个他将会任职6年的职位，所以选B。