Task 3. Complete the sentences with may, must, should, needn't, had to, couldn't or was able to according to the meaning in brackets 1. Paul work harder if he wants to keep his job. ( I advise)
2. I have the last piece of cake, please?(Do I have permission?)
3.Sally ride a bike when she was 5. (She didn't have the ability)
4. I to study all night for today's History test(it was necessary)