请将下列句子改成间接引语
1."you shouil be more careful mext time."his father said to him.
—His father him more careful next time .
2.Mr Wang said "I will leave for Beijing on business next month,children."
--——Mr Wang his children leave for Beijing on business month
3.He said to Jack,"Are you a student?"
He Jack a student.
4.Mom said to me "Don't tell a lie ."
Mom me a lie
5."Go and post the letters,please." the manager said to him.
The manager him and post the letters.