她在聚会上跳了一支欢快的波尔卡舞。

She danced a lively ___polka at the party.

乐队正在为舞者们演奏一首欢快的波尔卡舞曲。

The band is playing a cheerful ___polka for the dancers.

她买了一条带有白色圆点的波点裙。

She bought a dress with white ___polka dots.