1. They had completed all the preparations for the ball by 6 o’clock.
2. On leaving the hospital the man thanked the doctor who had cured him of his disease.
3. In the morning all the passengers felt good after the night they had spent in the comfortable sleeper.
4. During my last visit to the picture gallery I found that I no longer liked the pictures which had impressed me when I first had seen them.
5. Last night he completed the experiment which he had begun some months before.
6. No sooner had she opened the drawer than she found the photo which she thought she had lost long before.
7. They had been friends for some ten years before I met them.
8. I had refused to give a definite answer before I received a letter from him.
9. Hardly had he touched the pillow when he fell asleep.
10. Everybody was already at the bus station, but the guide had not come yet.
Despite the fact that you can't leave the house in quarantine, I found something to do. Every day I did my homework first. It wasn't easy. Since it is more difficult to study without teachers. But I decided to study well at all costs. So I did my lessons long and hard. Turning to your parents for help. Everything worked out and I sorted out new topics on my own. When I completed my homework, I carefully checked for errors. Having done my homework, I was happy with myself. Then I helped my parents. I tried to do what they asked. Then I could rest. For example, play a computer or phone. After resting, I went to bed. After all, tomorrow is a new day. I'll have to do my homework again and help my parents.
Надеюсь, это то что надо было?