Раскройте скобки, поставив глаголы в фоpму Past Continuous.

While I ___________ (to copy) the exercise, my friends __________ (to describe) a picture.
When we came in, the children __________ (to clean) their desks.
We met her at the bus stop. She ___________ (to wait) for the bus.
Some of the children ________ (to ski) while other children ___________ (to skate). Everybody __________ (to have) a lot of fun.
When we came the family ________ (to get) everything ready for Christmas. Bob and Helen _________ (to decorate) the Christmas tree.
The girls _________ (to feed) the birds in the garden while the boys _______ (to make) a bird-house.