快乐搭档，选择适当的句子补全对话。

A. Did you see today's newspaper? A girl won a million dollars in the lottery.

B. Really? __ 1 ___

A. __ 2 ___

B. If I won the lottery I'd give the money to medical research. __ 3 ___

A. __ 4 ___I know what I'd do. If I won the lottery I'd buy a big house for myself.

C. I'd put the money in the bank.     5