Составить вопросы (один общий, и два специальных предложения с каждым ) Срочно!!!! 1) They are playing tennis now 2) Mary plays the guitar vary well

1.They are playing tennis. Are they playing tennis? What are they playing? 
They play tennis well. How do they play tennis? 
2.Mary is studying. Is Mary studying? 
She usually studies late in the evening. When does she usually study? 
3.My parents are having dinner. Are my parents having dinner? What are my parents having? 
They always have dinner at home. Where do they always have dinner?