问题补充:
---Who is old man in brown coat over there?
---Oh he is Mr. Green, he is from France.
A. the; /
B. an; a
C. the; a
D. a; a
答案:
A. the; /
B. an; a
(答案→)C. the; a
D. a; a
解析:句意:在那边穿棕色外套的老人是谁?哦,他是格林先生,他来自法国。old man后面有介词短语限定,故该用定冠词。brown coat表示类别该用不定冠词。所以选C。