They __________ a lot of bikes.
A. were sold
B. have sold
C. sells
D. have sell
Chọn đáp án B
A: Who’s that pretty girl Tom dancing with?
B: I don’t know. I __________ her before.
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.