Реши пожалуйста

Конечно! Вот решение:

1. While I was copying the exercise, my friends were describing a picture.
2. When we came in, the children were cleaning their desks.
3. We went her at the bus stop. She was waiting for the bus.
4. Some of the children were skiing while others slept.
5. Everybody was having a lot of fun.
6. When we came, the family was getting everything ready for Christmas. Bob and Helen were decorating the Christmas tree.
7. The girls were feeding the birds in the garden while the boys were making a bird-house.

Если нужны еще какие-то пояснения, дай знать!