You may leave the classroom when you __________ writing.
A. will finish
B. are finishing
C. have finished
D. had finished
Giải bởi Vietjack
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.
A: How are you today?
B: Oh, I __________ as ill as I do now for a very long time.
