A. That's sound good    
B. That sounds well  
C. That sounds good    
D. Yes, it is

A. I don't have a ping-pong bat        
B. That sounds boring    
C. Sorry, I don't like it              
D. That sounds great

A、Right  
B、Well
C、ALL right
D、Very well

A. it's good.  
B. That interesting  
C. That sounds good    
D. it's fun

A. No, I don't.        
B. That sound interesting.
C. OK! It's boring.      
D. I don't have a ping-pong bat.