The wild flowers looked like a soft blanket
() the desert.
A covering
B covered

The wild flowers looked like a soft blanket
() the desert.
A covering B covered

cover
n.盖子, 封面, 藉口
vt.覆盖, 铺, 掩饰, 保护, 掩护, 包括, 包含, 适用
vi.覆盖, 涂, 代替

cover the table with a cloth
把桌子铺上台布
be covered with moss
长满绿苔
be covered with snow all the year round
终年积雪
cover the loss
弥补损失

从这些用法中都能看出，cover应用主动，所以选A。现在分词作定语。