1.4.4. Make questions using the given words.

1) What were you doing when the doorbell rang? 2) What did your brother do when you came home? 3) Where will they walk when it starts raining? 4) Who will she wait for when you see her? 5) What did Dave do when Lucy phoned? 6) What song were they singing when you entered the room? 7) What were your friends talking about when you joined them?