题目内容：
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 size52
B: It′s a pity. Do you have that size in blue then
A: Yes. Blue is53this 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（53）题答案
答案解析：