当你去商店买东西,营业员说:Can I help you? 你该怎么回答?

Oh , yes . could you help me find ..〈你要买什么后面就接什么..〉

yes， I want to buy....

thank you，I need……
yes，I want to buy……

如果你想买东西的话

就回答,Yes,can I take a look of..(是的,我可以看看那...吗?)

如果不想买的话

就回答,No, thanks anyway.(不用了,但还是谢谢你)

Oh Yes, Can you tell me where can I find XXX?

像3这样的回答就很对。