| — I like a yo-yo. — Me, too. I have ___________. |
| [ ] |
| A. two yo-yo B. two yo-yoes C. two yo-yos D. yo-yo |
| 写出下列单词的复数形式。 |
| 1. mouse 5. child 9. tomato |
2. goose 6. radio 10. photo |
3. roof 7. peach 11. ox |
4. tooth 8. knife 12. lemon |