Match the sentences.(给下列句子配对)
(_____)1. Can I help you?
A.Thank you.
(_____)2. Is it 2 yuan?
B.Yes, it is.
(_____)3. What do you want to buy?
C.Yes, I do.
(_____)4. Do you want to buy a pencil?
D.I want to buy a pencil.
(_____)5. Here you are.
E.Yes, please.