Use the correct tense:
1. The teacher will be very angry if you …………………………… (not do) your homework.
2. If he ……………………………….. (tell) me, I could help him.
3. If you don’t water the flowers, they ………………………………………… (die).
4. If you didn’t water the flowers, they …………………………………………(die).
5. I ……………………………………….. (come) if I had time.
6. If you don’t hurry, you ……………………………………….. (miss) the bus.
7. If I …………………………… (be) you, I wouldn’t buy that car.
8. He will play tennis if the weather …………………………………. (be) good.
9. I would be very happy if she …………………………………. (be) my sister.
10. She could win the race if she …………………………………. (try).
11. If he ……………………….. (go) to bed early, he will get up early.
12. If he touches this wire, he ……………………………….. (get) a shock.
13. You will get wet if it …………………………… (rain).
14. If I knew, I ………………………………… (come) earlier.
15. I wouldn’t say it if I ……………………….. (be) you.
16. ……………………………….. (crash)