10. If I (know) ____________ that there was the test yesterday, I (study) ____________. 11. If you (have) ___________ enough time, please (paint) _____________ the chair. 12. Had we known your address, we (write) _____________ a letter to you. 13. If you (do) ___________ as I told you, you (succeed) _____________. 14. Jim isn’t at home right now. If he (be) ____________ at home, I (visit) _____________ him. 15. If I (make) ____________ a promise last night, I (keep) _______________ it. 16. You were late last night. If you (arrive) ___________ 10 minutes earlier, you (get) ___________ a seat. 17. If I (realize) ____________ the traffic lights were red, I (stop) ____________. 18. She won’t open the door unless she (know) ______________ who it is. 19. If there (be) _____________ no sunshine, we all (die) ____________ soon. 20. You shouldn’t believe it if you (not see) ____________ it with your own eyes. 21. If she (be) ____________ 2 years younger, she (take) __________ part in the contest. 22. If the streets here were wider, there (not be) ___________ so many accidents. 23. The table (collapse) ______________ if you (jump) ______________ on it. 24. ___________ you (choose) ___________ this university if you (be) ____________ me? 25. If you (not wear) ____________ a helmet, you (get) ____________ a fine