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please. I want/would like to buy a sweater. Talk about shopping A: How much is it?/ How much does it cost? B:It39。s.... / It costs.... A: What39。s the price of the sweater? B:It39。s.... A: What color/size/kind would you like? B:I39。d like the blue one/size M/the darker one. Thanks a lot./Thank you very much./Thanks for helping me./Thanks for your help. That’s OK. That’s all right. You’re wele. It’s my pleasure./My pleasure. Not at all. Don39。t mention it. Thank sb Sorry./I’m sorry./I39。m sorry for losing your book. That’s OK. That’s all right./It39。s all right. It doesn’t matter. Never mind. It39。s nothing. Fet it. Say sorry to sb Please try your best! Thanks for your listening!