根据短文内容，将所给的词的恰当形式填入填在横线上。

    Og is an octopus (章鱼). He (live) in the sea. He (like) to swim. He doesn't (have) many friends. One day, he (find) a ball. He bought that the ball could be his friend. He put his arms around the ball. He (give) him a strong hug. Og was very happy.