—What would you do if you         the lottery?—I         give half of the money to charities.

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

If I _______ you, I _______ go there.

---If I were you, I ________ study harder

— Come and join us, Jimmy!— I’m sorry, but I’m really busy now. If I　　　 time, I would certainly go.