3. I (to ask) at the lesson yesterday.
4. I (to give) a very interesting book at the library last Friday.
5. Many houses (to build) in our town every year.
6. This text (to translate) at the last lesson.
7. Many interesting games always (to play) at our PT lessons.
8. We (to invite) to a concert last Saturday.
9. My question (to answer) yesterday.
19. St. Petersburg (to found) in 1703.​