Writing: Complete the sentences with the correct modal verb. Use must, mustn't, or don't have to, should,shouldn't. I (1) go to school from Monday to Friday. We (2) wear a uniform, so I normally wear sports clothes. We (3) arrive late, and we (4) go to every class. In class, we (5) shout, play or sing. We (6) have lunch at school, so I sometimes go home. When school finishes, I (7) look after my little sister. When my parents come home I (8) stay in, so I usually go out with my friends. When I get home, I (9) do my homework. I (10) go to bed late, except on Fridays, when I (11) go to bed before midnight. 12) You be honest with your friends. 13) You eat too much. 14) You inform your parents if you are getting late. 15) You tell your friends about your problems.