Put the verbs in brackets in the correct form.
1. Thank you for your help. If you (not help) __________ me, I (not pass) __________ the exam.
2. If I (phone ) __________ you tonight, (you / be) __________ at home?
3. It’s a beautiful house, and I (buy) __________ it if I (have) __________ the money, but I can’t afford it.
4. If he (have) __________ a problem, he always (ask) __________ his girlfriend for help.
5. What bad luck! If Alan (not fall) __________ over, he (win) __________ the race.
6. Why didn’t you phone? If I (know) __________ you were coming, I (meet) __________ you at the airport.
7. I can’t imagine what I (do) __________ with the money if I (win) __________ the lottery.
8. If she (not help) __________ me, I (not do) __________ it by tomorrow.
9. If we (be) __________ birds, we (can) __________ fly.
10. Don’t worry, you’ve just got a cold. If you (take) __________ an aspirin, you (feel) __________ better.