用所给单词的适当形式填空。

1. I don't like ______ (he) room. It's too small.

2. I need a pair of black ______ (sock) to go with my new shoes.

3. We hope ______ (arrive) at the airport around two o'clock.

4. This dictionary is not ______ (I). It's Jane's.

5. You are so _______ (luck) to have the chance to visit Michael Jordan.

消费者与经营者之间的权益争议，从法律性质上看，属______的范畴。