the wind and the sun the color on the board gradually ran.A. Being exposed toB. Having e

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。