B. Identify the modals in the following sentences.            
1.  We have to wear a face mask.          
2.  May I sit down, please?            
3.  It is your obligation to study well.    
4.  My mom didn’t give me the permission to join the camping.            
5.  She has an ability to swim.            
6.  I can speak English.  
7.  She capably paints.            
8.  You should stop smoking.            
9.  Would you like to come with us?           10.  Food is one of our necessities. ​