选择恰当的答句。

⑴What are they?              A. Yes, it is.

⑵Is this your skirt?           B. They are my new jeans.

⑶What colour is it?          C. They're my father's.

⑷Are these your shoes?      D. No, they aren't.

⑸Whose socks are these?     E. It's purple.