__________ to sun, rain and wind for a ...

__________ 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

C 【解析】试题分析：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。考点：考查分词用法

考点分析：

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