Complete the sentences below with appropriate modal verbs (should/ought to/must/need/have to) and forms of the infinitives in brackets. Sometimes more than one variant is possible.
1. The weather was awful. I was glad I (not go) to work.
2. Fiona (not be) so rude to Mrs. Swift yesterday.
3. I’m afraid you (call) the doctor tomorrow.
4. Stephen (not) behave like that if he doesn’t want to be expelled from school.
5. You (think) earlier about the possible consequences.
6. Christine (not cook) yesterday, because she was invited to a birthday party.
7. Why I (do) the same task again?
8. Dan (get up) early yesterday to catch his train to Boston.
9. Linda (not buy) any milk. We have enough in the fridge. She only wasted
money.
10. My brother (study) even at night now – he’s taking his finals at college.