Though of the danger he still went skating on the thin ice.A. warningB. to warnC. warnD.

问题补充：

Though of the danger, he still went skating on the thin ice.

A. warning

B. to warn

C. warn

D. warned

答案：

A. warning

B. to warn

C. warn

(答案→)D. warned

解析：考查非谓语动词。尽管被警告了危险，他仍旧继续在薄冰上滑冰。过去分词表示发生过的被动的动作，和句子主语是动宾关系，故选D。