Розкрийте дужки , вживаючи дієслова у Past Simple або Past Continuous
1. We ( to be ) on a school trip when the bus ( to break ) down.
2. Beth and Ann ( to wave ) their hands in the direction of the ship which ( to disappear ) a minute ago.
3. When l ( to see ) my granny, she ( to sit ) in the arm-chair and ( to catch the sun's early morning rays.
4. She ( to sing ) a song while she ( to go ) to school