Ответ:
1. Пример сделан у вас в задании.
2. Peter cut the grass and met his friends yesterday. He didn't read a magazine or write a letter.
3. Pam and Ben cut the grass and met their friends yesterday. They didn't read a magazine or write a letter.
4. Ann cut the grass and wrote a letter yesterday. She didn't meet her friends or read a magazine.
5. You wrote a letter yesterday. You didn't cut the grass, meet your friends or read a magazine.