床单皱巴巴的。

The ___sheets are crumpled.

床单被铺得整整齐齐。

The ___sheets are neatly made.

请把这些金属薄片放在工具箱里。

Please put these metal ___sheets in the toolbox.

月光下，湖面如同一大片闪亮的薄冰。

Under the moonlight, the lake looked like a vast, shimmering ___sheet of thin ice.