Придаточные предложения условия и времени упражнение №1

Выберите правильный вариант.

1. Before you ______ , don't forget to lock the door.






2. Please do not speak to anyone before the police ______ .






3. His parents will be very glad if she ______ the university.






4. When you ______ my brother, you ______ him.






5. We won't discuss the matter until the headmaster ______ .






6. If I ______ any help I ______ my friend.






7. Let's ______ before it ______ raining.






8. I want to go shopping but if you ______ to come, you






9. If you ______ on this tram it'll take you to the downtown.






10. He ______ to the country tomorrow if the weather is fine.






11. You'll understand nothing unless you ______ the book yourself.






12. You'll understand this rule after your teacher ______ it to you.






13.I ______ the room till I see my brother.






14.I ______ at home till you ______ me up.






15. You ______ English fluently if you ______ hard.






16. He ______ for Moscow as soon as his father ______ .






17. If I ______ my exams, my mother ______ me go to a disco.






18. If he ______ well, he'll always be tired.






19. I'll feel really sorry for her if she ______ all the work without any help.






20. He'll be fired if he ______ improve his work.







21. When I ______ short of money I ask my parents for help.






22. Don't trouble trouble until trouble ______ you.






23. You'll have to make a speech in case the chairman ______ late.






24. We'll make a good progress in English provided we ______ hard.






25. I don't know when they ______ .