选用正确的词完成短文They do size about much is buy have take colour短文如

选用正确的词完成短文
They do size about much is buy have take colour
短文如下
A:What can I ________for you?
B:Yes,I want to__________a pair of shoes for my son.
A:What_________do you want?
B:I want a small one.
A:What ________do you want?
B:White.How _____are these?
A:_____are seventy yuan.
B:It's too expensive.Do you _________a cheaper one?
A:Yes.How__________this pair?
B:I'll _________them.Here ________your money.
A:Thanks.
B:Bye!
A:Bye!