根据情境, 选择合适的句子补全对话

A. They are my sister's.  B. No, it isn't.  C. It's my mom's.  D. They're mine.  E. Andy, can you help me? F. Are these new pants yours?

Tom: What a mess（杂乱）!

Andy: OK. Look at the T-shirt. Is this yours?

Tom: It's my dad's T-shirt.

Andy: Whose skirt is this?

Tom:

Andy: It's very nice. Whose shoes are those?

They're so small. 

Tom:

Andy:

Tom: Yes, they are,