1. If you're studying, turn off the TV.
2. If I were you, I'd go to the doctor.
3. If she had paid her phone bill, her mobile wouldn't have been cut off.
4. If you go to Athens, you must see the Acropolis.
5. If he studied harder, he'd have better marks.
6. We would've helped them if they'd asked us.
7. If he bought a car, he'd be more mobile.
8. If he hadn't robbed the bank, he wouldn't have become rich.
9. If your computer doesn't work, you can use my laptop.