大明（a） 爸爸（b）售货员 （c） 一、家 a：Oh,no,dad.My computer doesn't.This one is too old. b:Don't worry.I'll buy a new fou you.Do you want to go with me this Sunday? a:Of course. 二、商场 c:What can I do fou you? b:We want to buy a new conmputer. c:Computers are over there. Look at this one. How du you like the computer? a:It's just so-so. c:Look at this one. It's comes form the U.S.A. There are many kinds of colors,such as black, white,red and pink.It's made up of keyboard mouse,host,CPU and some other small parts.It can help us to do a lot of things. For example,we can study on the Internet and we can use the computer to find jobs. We can also enjoy many Interesting songs movies and games. b:How much is it? c:It's 5000 yuan. b:It's isn't expensive. a:How wonderful! I'm satisfield with the computer.What about you dad? b:I like it ,too. I'll buy tne white computer. 5000 yuan .here you are. c:thank you. a and b:goodbye. c:Bye. (自己再修改修改）