2. Derek/walk the dog
A: Was Derek walking the dog yesterday at 3:00?
B: No, he wasn't walking the dog. He was sending a message.
3. Bob/cook a meal
A: Was Bob cooking a meal yesterday at 3:00?
B: No, he wasn't cooking a meal. He was talking on the phone.
4. Teresa & Al/play chess
A: Were Teresa and Al playing chess yesterday at 3:00?
B: No, they weren't playing chess. They were reading a book.
Ответ: See above