1. While I (to copy) the exercise, my friends (to describe) a picture.
2. When we came in, the children (to clean) their desks.
3. Wemetheratthebusstop.She(towait)forthebus.
4. Some of the children (to ski) while other children (to skate).
Everybody (to have) a lot of fun.
5. When we came the family (to get) everything ready for Christmas. Bob and
Helen (to decorate) the Christmas tree.
6. The girls (to feed) the birds in the garden while the boys (to make)
a bird-house.