Помогите пожалуйста с английскиммм легко даю много баллов

1.came,i was having dinner2.returned,i was listening the radio3.entered,he was drawing a pictures4.came in,i was doing my lessons5.aired,she was catching cold6.met,she was going to office7.was washing,somebody knocked in the room8.were dancing,came9.was washing,broke10.What were they doing when you saw them?