III. Choose the correct item. I use your phone, please? b) Should c) May a) Must 2. My son has always been a clever boy; he ......... read when he was three. a) could b) might c) may 3. You often have headaches. I think you a) may b) can c) should ..... visit a doctor. 4. There are some black clouds in the sky. It a) must b) may c) ought to .... rain this evening. 5. Most children............. wear school uniforms in private schools. a) might b) must c) can 6. The new student......... be German, he doesn't speak German fluently. a) shouldn't b) mustn't c) can't 7. People........ a) must fasten seat belts when travelling by car. b) can c) should 8. Dad is sleeping; you make so much noise, children. a) mustn't b) might not c) don't have to take a bus to school; I go there on foot every day. b) don't have to c) shouldn't a) mustn't 10. ... you swim? Yes, I can. a) Must b)Can c) Should