Câu 1:
A: What are you doing ?
B: I am weighing this letter. I need to know how many stamps to put on it
Câu 2:
A, Are you listening to the radio?
B No, You can turn it off
Câu 3:
A: Do you look for someone?
B: Yes, I need to speak to Nel. Is he in?
A, Yes, but I think he is busy. He is talking the boss at the moment
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