__________ you __________ your room yet?
A. Were / cleaning
B. Did / clean
C. Has / cleaned
D. Have / cleaned
Giải bởi Vietjack
Chọn đáp án D
A: Do you know our town at all?
B: No. It is the first time I __________ here.
A: Who’s that pretty girl Tom dancing with?
B: I don’t know. I __________ her before.
A: I’m sorry to keep you waiting.
B: Oh, not at all. I __________ here only a few minutes.
