1. You’ve been working all day . You _____ be very tired . (must )
2. I wonder who that is . It ____ be Lisa . She still in the library . (can’t)
3. It’s a long time since we meet last time . You ____ come and see us more often . (should)
4. I haven’t decided where I’m going for my holidays . I _____ go to Australia . (may)
5. My father’s birthday is coming . What ____ I get him ? (shall)
6. Why don’t you try on this dress ? It ___ look nice on you ? (will)
7. I don’t know when the guests ____ be here . They _____ arrive at any time . (will ; coud)
8. We have got little time . We _____ hurry . (must)
9. we have got plent of time . We _____ hurry . (needn’t)
10. We have engough food at home , so we ____ go shopping today . (needn’t)
11. There is lots of time for you to make up your mind . You ____ decide now . needn’t)
12. his is a valueble dictionary . You ___ llok after it carefully snd you ____ lose it . ( must ; mustn’t)