_____ Paul riding a bike?
Was
What _____ he doing?
was
_____ Ted surfing the net?
Was
_____ Cynthia's brother playing with the dog?
Was
_____ Mrs. Smith cleaning the house?
Was
What _____ the boys doing?
were
What _____ the boy and the girl doing?
were
_____ John and Andy's little sister swimming?
Was
What _____ the girls doing?
were
_____ the children playing basketball?
Were
What ____ they doing?
were
What _____ you doing?
were
What _____ the girl painting?
was
