--What would you do if you a million dollars?--I’d give it to the charityA. winB. wonC. w

问题补充：

--What would you do if you a million dollars?

--I’d give it to the charity

A. win

B. won

C. will win

D. is to win

答案：

A. win

(答案→)B. won

C. will win

D. is to win

解析：根据语境可知此句的含义是如果你赢得百万美元，你将怎样做。考查的是虚拟语气的基本用法。条件用过去时，主句要用过去将来时，故选C。