----- Nội dung ảnh -----
1. BASIC EXERCISES
2. Choose the correct answer: (Chọn đáp án đúng)

| Singular | Plural |
|----------|---------|
| 1. free | |
| 2. child | |
| 3. person| |
| 4. bottle| |
| 5. computer| |
| 6. mouse | |
| 7. fly | |
| 8. mountain| |
| 9. type | |
| 10. sheep| |
| 11. scholar| |
| 12. university| |
| 13. building| |
| 14. subject| |
| 15. woman| |
| 16. pagoda| |
| 17. umbrella| |
| 18. reason| |
| 19. photo | |
| 20. tomato| |
| 21. tooth | |
| 22. student| |
| 23. class | |
| 24. goose | |
| 25. bookshelf| |
| 26. street | |
| 27. holiday| |
| 28. baby | |
| 29. fish | |
| 30. many | |

A. as exciting so
B. many children
C. more exciting so

A. How much
B. much
C. How long

A. If you spend
B. less
C. fewer

A. for
B. to
C. as

1. I was born in 2000.