【正确答案】 C

【答案解析】[解析] come what may=whatever may happen“无论发生什么情况”，这是让步状语的一种形式，也是虚拟语气用作状语从句的句法：原形动词+as+主语+may/might/will/would=no matter how...，如：Say what you will(=Whatever you may say), I don't like it. Try as he may, he cannot succeed.