Can i help you?用先回答yes吗 what can i do for you

Can i help you?用先回答yes吗 what can i do for you can i help you回答 Can i help you 可怎么回答 Can i help you 的回答是什么?是用Yes,please还是用Yes,you can? Can I help you?的肯定回答和否定回答. Could you do me a favor?L want to buy a T-shirt.问：问句可以换成哪个?先翻译再回答.A.Can I help you B.Can I help me C.Let me heip you D.Help,you I'm sorry I can't help you.怎么回答 Can I help you 可以用 No 回答吗只用No回答 I can help you ( ) I can help you ( ) can i help you Can i help you “Can I help you? I can help you ( ) I can help you ( ) I can help you ( ) I can help you ( ) Can I help you?的回答Can I help you?怎么回答?A.Thank you.B.All right.