III. Rewrite the sentences, using “If/ Unless”: 1. I will read the letter if I know it is from you.  ____________________________________________________________ 2. If Tony doesn’t help in the garden, I will not finish my work in time.  ____________________________________________________________ 3. If you do not tell me about Maxwell’s birthday, I will forget it.  ____________________________________________________________ 4. We won’t catch the train earlier unless Mary finds her purse.  ____________________________________________________________ 5. If Susan doesn’t learn the poem, she won’t know the answer.  ____________________________________________________________ 6. If it isn’t too hot, we will not stop and get a cold drink.  ____________________________________________________________ 7. Unless it rains today, I won’t stay at home.  ____________________________________________________________ 8. If the Professor speaks clearly, we will understand him better.  ____________________________________________________________ 9. If you go on talking like that, we will throw you out.  ____________________________________________________________ 10. If Sasha doesn’t go home, he will meet many new customers.  ____________________________________________________________ 11. Unless it rains, the streets won’t be wet.  ____________________________________________________________ 12. If I do not tell Jim the address, he won’t find you.  ____________________________________________________________ 13. The bird will not die if you don’t catch it.  ____________________________________________________________ 14. If the weather does not change, we will reach the top of the mountain.  ____________________________________________________________ 15. Dinner will be fine if the meat isn’t cold.  ____________________________________________________________ 16. Benny will come if you wait a bit longer.  ____________________________________________________________ 17. Unless you ring the bell, nobody will answer it.  ____________________________________________________________ 18. You will fall ill if you eat so much.  ____________________________________________________________ 19. Unless you buys that big car, you will not need a lot of money.  ____________________________________________________________ 20. If you give me the letter, I will post it for you.  ___________________________________________________________