If I ＿＿you . I＿＿study harder. 

 ---What if I have to go there and know nothing about it?--- If I______ you, I would try to find some information about it on the Internet.

What_____you do if you had a million dollars ?

---What would you do if you         a million dollars? ---If I         you, I’d give it to medical research.

— Come and join us, Betty!— I’m afraid I can’t. I’m too busy now. If I ______ time, I would certainly go.