1. complete the sentences with the words in the box. should try, mustn`t tell, shoudn`t stay up, must finish, should\get, mustn`t be 1.you mustn`t tell people your password when you surf the internet. 2. anna to concentrate more in lessons. 3. we this school project before friday 4. when you chat online you unkind to friends. 5. they so late doing their homework. 6. how many hours` sleep people in your opinion? 2. choose the correct word. 2. they don`t have to \ mustn`t chat to strangers on the internet. 3. we don`t have to \ mustn`t sing that song - we can choose a different one. 4. do you have to \ must you tidy your room at the weekends?
