Ответ:
1. One fly flies, two flies fly.
2. One girl cries, four girls cry.
3. When a wolf sees the moon, it begins to howl.
4. Wolves and sheep are never friends.
5. Our hens lay a lot of eggs.
6. Boys fight and shout.
7. That boy tries to catch some balls.
8. These girls try to run away from an angry turkey.
9. If one goose has one tooth, how many teeth have thirteen geese?