Помогите пожалуйста! Срочно!!!
Упр. 172. Раскройте скобки, употребляя гла-| голы в Present Simple или Future Simple. (Все предложения относятся к будущему).
1. When he (to return) to St. Petersburg, he (to call) on us. 2. If I (to see) him, I (to tell) him about their letter. 3. We (to gather) at our place when my brother (to come) back from Africa. 4. I (to sing) this song with you if you (to tell) me the words. 5. I hope you (to join) us when we (to gather) in our country house the next time. 6. What you (to do) when you (to come) home? 7. If I (to stay) some more days in your town, I (to call) on you and we (to have) a good talk. 8. He (to go) to the Public Library very often when he (to be) a student. 9. As soon as I (to return) from school, I (to ring) you up. 10. You (to pass) many towns and villages on your way before you (to arrive) in Moscow. 11.1 (to stay) at home till she (to come). Then we (to go) to the theatre if she (to bring) tickets. 12. After I (to finish) school, I (to enter) the University.

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  have) a good talk. 8. He   had gone   to the Public Library very often when he was a student./ 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 (to pass) many towns and villages on your way before you  arrive) in Moscow. 11.i will  stay) at home till she   comes . Then we will (to go) to the theatre if she brings  tickets. 12. After i finish) school, I  will (to enter) the University

1. When he returns to St. Petersburg, he'll call on us. 2. If I see him, I'll tell him about their letter. 3. We'll 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'll 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'll call on you and we'll have a good talk. 8. He'll 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'll pass many towns and villages on your way before you arrive in Moscow. 11.I'll stay at home till she comes. Then we'll go to the theatre if she brings tickets. 12. After I finish school, I'll enter the University.