EXERCISE 1: Complete the sentences. Use the information in the box and the modal verb in parentheses.
quit it at once
be very happy
leave the building in order
go out for a walk
find another one
be very worried
come to visit me more
understand the lectures well
buy a smaller one
1. If you have toothache, you mustseethedentisL ......................(must)
2. If it rains, we ...........................(should not)
3. If the class is full, I................................ (will)
4. If it costs too much, we....................................... (must)
5. If you don’t come home early, your parents............................... (may)
6. If that job is boring, Susan................................ (may)
7. If you listen carefully, you.................................. (can)
8. If a fire breaks out, everyone.................................... (have to)
9. If you have more time, you.............................. (ought to)
10. If you phone your parents more often, they ..................................(must)