根据短文，选择合适的单词或短语填入短文下面的横线中。

    Daming and his friends are going to have a baseball game. But Lingling made a . She some cups for the friends. In fact(事实上)Amy told her to bring . They all. Then they all put the on their heads. It was very funny. At last, Sam gave them some caps. Then the friends could play baseball .