根据对话内容，将方框内符合对话情境的句子抄写在对话空白处，使对话恢复完整。选项中有两项是多余的。

Lisa: Can I help you?

Sandra: I want a skirt.

Lisa: What color do you like?

Sandra:

Lisa: What about this blue one? It's nice.

Sandra: Can I try it on (试穿)?

Lisa: Sure.

Sandra:

Lisa: What about the yellow one? It's big.

Sandra: Hmm ... It's good.

Lisa: It's $39.

Sandra: Thank you.

Lisa: You're welcome.