填入适当的词语或句子完成对话
A: 1_______________________________?
B: Yes, please. 2_____________________ a pair of shoes.
A: 3________________________ do you want?
B: Black.
A: What about this pair?
B: They look nice. 4____________________________________?
A: They are thirty dollars.
B: I’ll 5____________________. Thank you.
A: You are welcome.