根据句意完成下列问题。

1. — Is December-ninth your ______?

    — No, it's Mary's.

2. Alice is twelve years old. ______ is her birthday?

3. — ______ Jim's birthday November fifth?

    — Yes, it is.

4. — How ______ is your sister?

    — She's ten years old.

5. — ______ you thirteen years old?

    — Yes, I am.