Поставьте глаглы-сказуемые в главных предложениях в past indefinite (simple) и произведите соответствующие изменения в придаточных предложениях в соответствии с правилом согласования времен. 1. we know that nick has had some serious injuries. 2. we believe that some athletes of our academy will win the first prize at the olympic games. 3. the students tell us that they participated in the winter olympic games.

1. When he ( returns) to St. Petersburg, he (will call) on us.
2. If I ( see) him, I (will tell) him about their letter.
3. We (will gather) at our place when my brother (comes) back from Africa.
4. I (will sing) this song with you if you ( tell) me the words.
5. I hope you (will join) us when we ( gather) in our country house the next time.
6. What will you ( do) when you ( come) home?
7. If I ( stay) some more days in your town, I (will call) on you and we (will have) a good talk.
8. He (will go) to the Public Library very often when he (is) a student.
9. As soon as I ( return) from school, I (will ring) you up.
10. You (will pass) many towns and villages on your way before you ( arrive) in Moscow.

1. When he returns to St. Petersburg, he will call on us. 2. If I see him, I will tell him about their letter. 3. We will gather at our place when my brother  comes back from Africa. 4. I'll sing this song with you if you tell me the words. 5. I hope you will join us when we  gather in our country house the next time. 6. What will you do when you come home? 7. If I stay some more days in your town, I will call on you and we'll have a good talk. 8. He will go to the Public Library very often when he is a student. 9. As soon as I return from school, I'll ring you up. 10. You will pass many towns and villages on your way before you arrive in Moscow. 11.I'll stay at home till she comes. Then we will go to the theatre if she brings tickets. 12. After I  finish school, I enter the University.