根据上下文，选择正确的句子，将对话补充完整。

A. I am sorry to hear that. B. Thank you. C. What did you do last weekend? D. Where did you buy it? E. I had a cold last weekend.  F. What did you buy? G. How much are they?

A: Hey, Lily,

B: I went shopping with my mom.

A: That's great.

B: I bought a new shirt and a new bag.

A:

B: They're 180 yuan. And what did you do last weekend?

A: I did nothing.

B: Oh.