Вставьте нужную форму глагола:
1. When I … to skate I shall teach you. (learn, shall learn)
2. As soon as the lesson … we shall go to the canteen. (is over, will be over)
3. After they … from the Institute they will be highly qualified managers. (graduate, will graduate)
4. You will not be able to go home till you … all the exercises. (do, will do)