Clerk: Good afternoon. Can I help you?

Mr. Lai: I would like to pick up a present for my son.

Clerk: 1?

Mr. Lai: Eighteen. He's a student.

Clerk: I think he'd love a cell phone. We have all the fashionable colors.

Mr. Lai: Well, but I don't want him to use a cell phone too early.

Clerk: Or you can buy one for yourself. 2. See? This was 5,000 dollars last week but only 3,000 today. It's the best price you can get!

Mr. Lai: 3. I don't think I need a cell phone now.

pick up 挑選
1.
How much money do you have
How old is he
How tall is he
What would you like to give him
2.
You have spent a lot of money
It's the best present for your son
They will become more and more expensive
Cell phones are very cheap now
3.
That's true
You're welcome
Of course
No, thanks