— What would you do if you won the lottery? — I would give it medical research. A. ofB. f

问题补充：

— What would you do if you won the lottery?

— I would give it medical research.

A. of

B. for

C. to

D. at

答案：

A. of

B. for

(答案→)C. to

D. at

解析：

句意：---如果你中了彩票，你会做什么？我会用来作医学研究。give sth to：给某物用来作---，give sb for：作为---给某人。根据句意可知应选C。