问题补充:
to sun, rain and wind for a long time, the stone split(裂开).
A. Being exposed
B. Having exposed
C. Exposed
D. To expose
答案:
A. Being exposed
B. Having exposed
(答案→)C. Exposed
D. To expose
解析:考查分词用法。The stone与Expose,构成被动关系,故使用过去份被动被动。排除BD。A项表示正在被暴露,本题不强调正在进行。句意:长时间被暴露在阳光,雨水和大风之中,这块石头裂开了。故C正确。