填空题
根据中文提示，将对话中缺少的内容写在线上。这些句子必须符合英语表达习惯。打句号的地方，用陈述句；打问号的地方，用疑问句。提示：一位女士在商店为儿子挑选T恤衫，大小和式样都合适，也有喜欢的颜色，但价格太高。
（Shop Assistant =S；Customer =C）
S：Good morning，madam.____________51_________________________？
C：Yes.You see，I’m looking for a T-shirt for my son.
S：We have a large variety of T-shirts.What about this one？
C：Oh.I like it.____________52________________？
S：Let me see...Size 4，6...Yes，we have size 8.Here you are.
C：Urn，but I don’t really like this color.__________53______________________？
S：Yes，we also have pink，orange，black，blue，and...
C：Good.I think blue is nice.____________54____________________？
S：It’s $50.
C：Oh，really？I’m afraid________________55__________________.I’ll have to think about it.