Does Sam swim in the sea every summer?
Does he swim in the sea or the river?
Who swims in the sea?
Where does Sam swim every summer?
Sam swims in the sea, doesn't he?
(для второго предложения вопросы почти такие же)
Do the children read books in the evening?
Do they read books or magazines?
Who read books in the evening?
Why do they read books?
The children read books in the evening, don't they?