Since __________, I __________ nothing from him.
A. he had left / heard
B. he left / have heard
C. he has left / have heard
D. he was left / heard
Chọn đáp án B
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.