补全对话（5小题，每题2分，共10分）
A: Excuse me , Tony, could you please do me a favor,？
B：____________________. What need I do?
A: I’m going to the shopping centre to buy something for my mother’s birthday.
B: ________________________________?
A: Yes, I want you to help me carry the washing machine I’ll buy. I’m afraid it’s a little heavy.
B: ___________________?
A: The one in my home doesn’t work at all, So my mother always works hard at washing.
B: ______________________________?It’s convenient and cheap.
A: Yes. I’ve heard many people are shopping online every day. But I don’t know how to do it. Can you teach me how to shop online?
B: No problem, But not now. _______________.
A: All right, I wait until you have free time in two days, Thank you,
B: Not at all.