Modal Verbs for 9-th Form

Choose the correct form of must or have to. Use the negative or the question if necessary and put have to in the correct tense. In some sentences two answers are possible.
1. I ……. leave the party early last night – I wasn’t very well.
2. I’m sorry, you ……… smoke in here.
3. The children are happy because they ……… do any homework today.
4. You ……… get up early tomorrow if you want to catch the bus.
5. ……. (you) have a visa to come here?
6. It was a very bad accident. You ……… be more careful in future.
7. She’s been ill. She ……….. stay in bed since last month.
8. I’ve told the children that they ………… come home before ten on Sunday nights.
9. ….. (you) do military service in your country when you were young?
10. It was a sunny holiday. We …….. do anything.
11. They were rude. They ……… apologize the next day.
12. The teacher told us that we ……… . Work harder.
13. You …….. get a passport before you go abroad next month.
14. We …….. come back by boat because the airport was closed by fog.
15. You ……….. borrow my books without asking.