He is 40 and he feels his career as basketball player is coming to end.A. /；theB. /；anC.

问题补充：

He is 40 and he feels his career as basketball player is coming to end.

A. /；the

B. /；an

C. a；an

D. a；/

答案：

A. /；the

B. /；an

(答案→)C. a；an

D. a；/

解析：

第一空泛指“一名篮球运动员”，所以用不定冠词；come to an end为固定短语，意为“结束”。