A．How much is it？
B．Oh，yes．We have blue，yellow and white ones．
C．Which one do you like？
D．I'll take this one．
E．Can I help you？
A：（1） ______
B：Yes，please．I want to buy a sweater．
A：（2） ______ What about this one？
B：I don't like black．Do you have other colors？
A：Other colors？（3） ______
B：Can I have a look at the yellow one？
A：Yes，please．
B：（4） ______
A：20dollars．
B：OK．（5） ______ Here's the money．