| 写出下列单词的复数形式。 |
1. boy______ 2. city_______ 3. man_______ 4. child_______ 5. woman_______ | 6. box_______ 7. class_______ 8. glass_______ 9. book_______ 10. knife_______ |
|
1. boys2. cities 3. men4. children5. women6. boxes 7. classes
8. glasses 9. books10. knives