微风轻拂着树叶，发出沙沙的声响。

The wind ___whistled through the leaves, making a rustling sound.

她在买裙子还是裤子之间犹豫不决。

She kept ___wavering between buying a dress or a pair of pants.

微风轻拂，窗帘轻轻飘动。

The curtains ___fluttered softly in the breeze.