Change the following sentences into indirect speech.

1. He requested his friends to have some more tea.
2. She told her brother to take the books inside.
3. I instructed her to close the window immediately.
4. My mother advised me not to commit errors in the exam.
5. The commanding officer ordered the soldiers to go and defeat the enemy.
6. The judge ordered to call the witness.
7. My mother asked us to speak softly as everyone was asleep in the room.