简答题:根据下面资料，回答51-55题
提示：Bill到商店买L号的黄衬衫，得知该颜色衬衫已售完，想看看蓝的。售货员说蓝色
今年很流行，他试穿后决定买下。
( Bill = B ; Shopping Assistant = A)
A:Can I help you, sir?
B : Yes. I´ m looking for a yellow shirt.
A: 51 ？
B : Size L.
A: Sorry. The yellow ones of your size 52
B: It´s a pity. Do you have that size in blue then?
A: Yes. Blue is 53 this year.
B : Well. 54 ？
A: Sure. Look！ It fits you well.
B: Yes, it does. 55 ？
A: 150 yuan.
B: OK. I´ll take it.
第（51）题答案