Помогите с 6 номером, надо составить предложение в прошедшем времени,если не понятно смотрите по примеру.

2. Lilly lived in Hong Kong two years ago.
3. I laughed at Bruce`s funny story.
4. Last week Ken and Vicki received 300 letters.
5. Bruce and Lilly hurried to the zoo.
6. Yesterday they walked around the zoo.
7. Yesterday Bruce played with Lily`s dog.
8. The Kangaroo hopped away.
9. Lily tried to feed the baby monkey an hour ago.