11. A cake is being eaten.
12. English is spoken by English people.
13. Glasses are worn.
14. Whisky is drunk by the children.
15. A cat and a dog are kept as pets by our children.
16. Eggs aren't laid by a rooster.
17. The wool is given by sheep.
18. Dinner wasn't served by mother.
19. Hats and coats were left here.
20. The meeting can't be held in that ....
21. The bill has to be paid.
