young man standing there looks strong and healthy; however, as matter of fact ,he has a

young man standing there looks strong and healthy; however, as
matter of fact ,he has a serious disease.　　　　　　
A. The; the
B. A; a
C. The; a
D. A; the

A. The; theB. A; a(答案→)C. The; aD. A; the解析：这题考查冠词的用法：第一空填the，特指那个年轻人，第二空填a，考查固定词组：as a matter of fact“事实上”，选C。

这个解释是对的