白色的床单平整地铺在床上。
The white ___sheet is neatly placed on the bed.
我需要一张纸来记笔记。
I need a ___sheet of paper to take notes.
暴风雨撕裂了船上的帆布。
The storm tore the ___sheet on the boat.
暴风雨过后,湖面像一块巨大的玻璃板一样平静。
After the storm, the lake became a calm ___sheet of glass.