她在派对上愉快地向朋友们打招呼。

She greeted her friends ___cheerfully at the party.

尽管很忙，他还是愉快地接听了电话。

He answered the phone ___cheerfully despite being busy.

他们随着欢快的音乐愉快地跳舞。

They danced ___cheerfully to the lively music.