问题补充:
the wind and the sun, the color on the board gradually ran.
A. Being exposed to
B. Having exposed
C. Exposing
D. Exposed to
答案:
A. Being exposed to
B. Having exposed
C. Exposing
(答案→)D. Exposed to
解析:考查过去分词做状语,the color和expose是被动关系,用过去分词做状语,句意是:如果暴露于阳光和风里,颜色会逐渐退掉的。选D。