What were they doing last Christmas Eve at about 6pm

Давайте составим так:

1) The parents were preparing a lot of food

2) Clare was hanging greetings cards on the walls.

3) The mother was making Christmas cookies

4) Jay was hanging stockings on the bed.

5) The grandmother was wrapping presents.

6) grandfather was decorating the Christmas tree with light.

Думаю все вы поняли

Удачи всем