A. do
B. Do
C. Are

A. Do                         
B. Are                             
C. Does

[     ]

A. I feel happy.
B. That's hot.
C. Yes, I'm very cold.

A. Yes, I am.                           
B. No, I'm not. 
C. I am sad.                  
D. I don't know.

A. Do            
B. Is              
C. If