1. They go to the zoo. - Do they?
2. She goes to the zoo - Does she?
3. She went to the zoo. - Did she?
4. They can go to the zoo. - Can they?
5. He likes to the zoo. - Does he?
6. She came to the zoo at 3. - Did she?
7. They watch monkeys. - Do they?
8. She watched crocodiles. - Did she?
9. The crocodiles ate meat. - Did they?
10. The monkeys saw the doll.
- Did they?