2. You (fail) your exam if you (not study) hard.
3. If you (be) late, I (go) without you.
4. Your plants (not grow) well if you (not water) them.
5. If I (pass) my driving test, I (buy) a car.
6. Our children and grandchildren (suffer) if we (not look after) our planet.
7. You (have) more energy if you (eat) lots of fresh fruit.
8. You (lose) weight quickly if you (not eat) sweet things.