问题补充：
In the past ten years, the mountain climber a lot from his own adventurous
A. experienced; experienced; experience
B. experience; experienced; experiences
C. experienced; has experienced; experiences
D. experience; has experience; experience
答案：
A. experienced; experienced; experience
B. experience; experienced; experiences
(答案→)C. experienced; has experienced; experiences
D. experience; has experience; experience
解析：the mountain climber需用形容词来修饰名词climber，所以用形容词experienced，有经验的；第二空要填谓语动词，根据时间状语In the past ten years可知要用现在完成时态；最好一空是说他自己的冒险经历，experience当经历讲时，是可数名词，在这要用复数。所以选C。
