Вопрос по английскому языку:

Помогите, пожалуйста))
Раскройте скобки, употребив нужную форму глагола в придаточных условных предложениях.
1. Не would bring you this magazine if you (to ask) him.
2. Everybody would have understood him if he (to speak) English.
3. You could have bought a ticket if you (to come) to the station earlier.
4. If it not (to be) so late I´ll phone him.
5. You would understand the main idea if you (to read) the issue carefully.
6. If it not (to be) so expensive I´ll buy this magazine.
7. The student wouldn´t have written his course-paper in time if he not (to borrow) the books from the library.
8. You could have seen this picture if you (to visit) this exhibition last week.
9. The student wouldn't have written his course-paper in time if he not (to borrow) the books from the library.
10. You could have seen this picture if you (to visit) this exhibition last week.