The price __________, but I doubt whether it will remain so.
A. went down
B. will go down
C. has gone down
D. was going down
Chọn đáp án C
A: Do you know our town at all?
B: No. It is the first time I __________ here.
A: I’m sorry to keep you waiting.
B: Oh, not at all. I __________ here only a few minutes.