A: Who’s that pretty girl Tom dancing with?
B: I don’t know. I __________ her before.
A. never have seen
B. had never seen
C. was never seeing
D. have never seen
Chọn đáp án D
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.
A: How are you today?
B: Oh, I __________ as ill as I do now for a very long time.