Though he is ugly boy yet he often comes first in the exams. A. a; /B. an; /C. an; theD

问题补充：

Though he is ugly boy, yet he often comes first in the exams.

A. a; /

B. an; /

C. an; the

D. a ; the

答案：

A. a; /

(答案→)B. an; /

C. an; the

D. a ; the

解析：第一空表示第一次提到该男孩，不用特指，且首个音标为元音音标，故选an，而后一空first表示的是副词修饰comes，不用加the，故选B