Ex. 59 Past Perfect. 1. He (to clean) his room by five o'clock.
2. Her son (not to do) the home task by nine o'clock.
3. Mother (to cook) dinner by seven o'clock.
4. She (not to make) a dress before party.
5. We (to speak) to him before the meeting.
6. What they (to do) by three o'clock?
7. Who (not to write) the exercise before the bell?
8. Why you (not to sweep) before your mother's coming?
9. You (to reach) your house before the sunset?
10. Your child (to go to bed by ten o'clock?​