A: Did you see ___________ dog just now?
B: Is it ___________ black dog?
A: Yes. It is.
B: Oh, I just saw it passing the door. [ ]
A: the; a
B. a; a
C. the; 不填
答案:B
A: Did you see ___________ dog just now?
B: Is it ___________ black dog?
A: Yes. It is.
B: Oh, I just saw it passing the door. [ ]
A: the; a
B. a; a
C. the; 不填
答案:B