Question

He became ________ college student in 1990, and then turned ________ soldier in 1994.

1. A.
   a; a
2. B.
   a; the
3. C.
   the; a
4. D.
   a; /

Answer 1

D
当turn表示“成为”时，其后直接跟上抽象意义的名词（名词前不用冠词）或形容词。又如：He turned pale at the news;而become后接名词单数时需要用冠词。