Use "must," "to have" or "to be": 1. The train ... arrive in five minutes, we... hurry up. 2. If he doesn't meet you at the station you... take a taxi. 3. They be here an hour ago. 4.1... go to the library after classes because I... make a report tomorrow. 5. It ... be a very interesting novel, I know the author. 6. I don't think you ... wait long. 7. They... marry early in June, so they... stay in Moscow. 8. She ... clean her shoes after working in the garden. 9. The lecture... begin in a minute. 10. You... be tired, you... have a little rest. 11. I.. answer a lot of questions at the examination. 12. We ... leave on Monday.