题目内容：

从方框中选择恰当的句子完成下面的对话，有一个多余选项。

A: What can I do for you?

B: I want to buy a dress for myself.

A: OK. 1._____

B: M. And my favorite colour is yellow. 2._____

A: Sorry. 3.____ But there is one in L.

B: Let me try it on. Oh, it is a little long for me.

A: 4.____

B: OK. How long do I need to wait?

A: About a week. 5._ Everything will be half price.

B: That sounds good.

A. And then we will have a big sale. B. What size do you often wear? C. If you really need it, you have to wait for several days.  D. Please help me find a yellow one. E. We don’t have any yellow dresses in M.