Jack __________ the door.
A. has just painted
B. just paint
C. have painted
D. painting
Chọn đáp án A
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: Who’s that pretty girl Tom dancing with?
B: I don’t know. I __________ her before.