她在音乐课上学习吹长笛。

She is learning to play the ___flute in her music class.

她用细长的香槟杯优雅地啜饮着气泡酒。

She sipped the sparkling wine elegantly from a tall ___flute.

鸟儿在枝头婉转啼鸣，声音如同长笛般清脆。

The bird ___fluted on the branch, its song as clear as a flute.