问题 填空题
写出下列单词的复数形式。

1. this _________      
2. class _________      
3. toy car _________    
4. woman nurse _________
5. film star _________ 

mouth ________            
policewoman _________      
apple tree _________                                                           
boy student _________        
man teacher _________      
答案

1. these     

2. classes     

3. toy cars   

4. women nurses 

5. film stars   mouths         

policewomen           

apple trees                                                                                       

boy students       

men teachers       

单项选择题
单项选择题