Put the verbs in brackets into their correct tense!

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
1. The burglars (NOT DO) so much damage if you had locked all the drawers.
2. If he had slipped, he (FALL) 500 metres.
3. They would have forced their way into the house if I (NOT CALL) for help.
4. You (NOT BE) of any use to me unless you learn to type.
5. If I (NOT BE) so busy I would have invited him earlier.
6. If he (STOP) smoking, he would put on some weight.
7. I (BRING) you something to drink if I had known that you were thirsty.
8. You´ll get a cold if you (NOT CHANGE) your wet clothes.
9. If I (BE) president I would raise the taxes at once.
10. If a thief (ATTACK) me my dog will jump at him quickly.
11. I´ll probably get lost unless he (COME) with me.
12. I could repair the roof myself if I (HAVE) a ladder.
13. If people didn’t have cars they (WALK).
14. If there were no TVs I (READ) more books.
15. If the story hadn’t been true they (NOT PRINT) it in the newspaper.
16. We (HAVE) a long way to walk home if we run out of petrol.
17. If I (BE) you I wouldn’t go there.
18. What would you have done if you found out that one of the pupils (CHEAT).
19. What would I do if the alarm (GO) off ?
20. If you (CAN COME) with us , we would have been pleased.