If it had been possible, I would have helped him, but I ______ too busy.

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

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

--- If I_______ one million dollars, I would give it to medical research.---If I _______ you, I would give it to charity.

—A student in my class said to me, “if I ______our math teacher, I_____ make math learning easier and more interesting instead of giving the kids much homework to do every day.”