1. The teacher: “Don't forget to correct your mistakes, Jack.” 2. Charles: “Don't' leave the door open, Mary.” 3. The man: “Don't play on the grass, children.” 4. Mother: “Don't take bread with a fork, Jim.” 5. Father: Don't come home late, Nick.” 6. The gardener: “Don't pick flowers in the park, children.” 7. Father: “Don't make noise while Granny is sleeping, boys.” 8. The instructor pointed out: “Only the best players can participate in the Olympics.” 9. He said: “It was difficult for me to persuade her to come here.” 10. Mabel said: “As soon as you come to our town, visit my house and stay for a couple of days.”