L. we (plant) the trees when the weather (get) warmer. 2. i (wait) for you until you (come) back. 3. i'm afraid the train (start) before we (come) to the station. 4. we (go) to the concert tomorrow if i (get the ticket you (not pass) the examination if you not (work) much harder. 6. if you 5. (not drive) more carefully you (have) an accident. 7. you (be) late if you (not take) a taxi. 8. i (finish) reading this book before i (go) to bed. 9. you have to (call) me as soon as you (arrive). 10. e (have) a picnic tomorrow if it (be) a fine day. 11. we (go) out when it (stop) raining. 12. we (not to have) dinner until you (come). 13. i'm sure they (write) to us when they (know) our new address.

l. We will plant the trees when the weather gets warmer. 2. I will wait for you until you come back. 3. I'm afraid the train will start before we come to the station. 4. We will go to the concert tomorrow if I get the ticket. You will not pass the examination if you do not work much harder. 6. If you do not drive more carefully, you will have an accident. 7. You will be late if you do not take a taxi. 8. I will finish reading this book before I go to bed. 9. You have to call me as soon as you arrive. 10. we will have a picnic tomorrow if it is a fine day. 11. We will go out when it stops raining. 12. We will not have dinner until you come. 13. I'm sure they will write to us when they know our new address.