DẠNG I:Put the correct form of verbs 1. If I (know) that you were ill, I (go) to see you. ………………………………………………………………………………………… 2. If she'd had enough, she (buy) a car. ………………………………………………………………………………………… 3. I (buy) a car if you lend me some money. ………………………………………………………………………………………… 4. I (see) him if I (go) to the party last night. ………………………………………………………………………………………… 5. We could have gone out if the weather (not be) so bad. ………………………………………………………………………………………… 6. If the book (not be) expensive, Ill buy it. ………………………………………………………………………………………... 7. You would be very surprised if he (return) ………………………………………………………………………………………… 8. Ill go out if it (not rain) à ………………………………………………………………………………………… 9. They wouldnt come to the party if you (not invite) them.………………………………………………………………………………………… 10. What you (do) if you (be) him? ………………………………………………………………………………………… 11. If that hat costs much, I (buy) a small one. ………………………………………………………………………………………… 12. If you (drive) more carefully, you wouldn’t have had so many accidents.………………………………………………………………………………………… 13. If I (make) that mistake again, my teacher will get angry with me. ………………………………………………………………………………………… 14. If I spoke English, my job (be) a lot easier. ………………………………………………………………………………………… 15. If he (go) to London yesterday, he (meet) his old friend. ………………………………………………………………………………………… 16. I will lend them some money if they (ask) me.………………………………………………………………………………………… 17. If we had known who he was, we (invite) him to speak at our meeting.……………………………………………………………………………………. 18. My dog will bark if it (hear) any strange sound. ………………………………………………………………………………………. 19. If I (have) enough money, I would buy a house. ………………………………………………………………………………… 20. They (let) you in if you come late. ……………………………………………………………………………………. 21. He didn’t listen to the teacher. If he (listen) carefully, he (perform) well in the examination. …………………………………………………………………………. 22. He’s waiting for his mother to come back from Chicago. If his mother (come) home, he (have) a lot of presents. ………………………………………………………………………………………… 24. If I (be) you, I (tell) the truth. ………………………………………………………………………………………… 25. I was busy. If I (have) free time. I (go) to the cinema with you.…………………………………………………………………………………….….. 26. It’s too bad Helen isn’t here. If she (be) here, she (know) what to do.………………………………………………………………………………….…….. 27. I could have understood him if he (speak) more slowly.……………………………………………………………………………….……….. 28. The kitchen will look better if we (have) red curtains.……………………………………………………………………………….……….. 29. If I knew his address, I (go) round and see him. …………………………………………………………………………….………….. 30. If you (not be) so busy, I would have shown you how to play.……………………………………………………………………………….………..