Замените предложения в коственную речь 1) he said "i don`t know her address. 2)she said "he left 2 hours ago" 3)mother said" knew about your marks" 4)teacher said "children are plaing in the park"

He said he doesn`t know her address.She said he had  left 2 hours before.Mother said she had  known about my marks.Teacher said children were plaing in the park.