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.
51.____________________________________
