Jim is excellent runner. He often comes first in the race. A. an theB. the theC. a / D

问题补充：

Jim is excellent runner. He often comes first in the race.

A. an , the

B. the, the

C. a, /

D. an, /

答案：

A. an , the

B. the, the

C. a, /

D. an, /

解析：考查冠词。句意：吉姆是个优秀的选手，他经常跑第一。第一个空表示泛指，所以用an,excellet是元音。Come first 名列前茅。所以选D项。