Решение:
- The cat often plays (единственное число)
- Do you have a pet? (множественное число)
- The goose doesn't have (единственное число)
- We go to the zoo (множественное число)
- My budgie is 2 years old (единственное число)
- My dog walks every day, does it?
- Your goldfish doesn't eat, does it?
- Tortoise hides shell, doesn't it?
- Hen doesn't fly, does it?
- Sheep doesn't swim, does it?
Ответ: plays, Do, doesn't, go, is, does, does, doesn't, does, does