问题 填空题
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_______                                                                    
答案

1. boys  2. cities   3. men  4. children  5. women  6. boxes   7. classes 

8. glasses   9. books  10. knives

单项选择题
单项选择题