（B）

1. Mr. Smith is a teacher. He is very strict.

2. The girl is called Mary. I saw her yesterday.

3. There are two other sharks. They are fierce.

4. This is the factory. I visited it last year.

5. This is the most exciting moment. I will never forget it.

6. I have found such books. They are beneficial to us.

7. I bought the same dress. You wore the dress yesterday.

8. He is such a kind teacher. We all like him.

9. The house is Tom's. Its door faces south.

10. The house is Tom's. The door of the house faces south.

11. Workers built shelters for the survivors. Their homes had been destroyed.

12. Workers built shelters for the survivors. The homes of them had been destroyed.

13. Tom has a gold watch. Its hands are made of diamond.

14. He has two sons, and both of them are teachers.

15. There are many old buildings, and many of them have been pulled down.

16. There is a beautiful house, and in front of it sits a little girl.

17. He is a hero, and we are all proud of him.

18. We have no money. We buy food with money.

19. This is the book. I am interested in it.

20. This is the village. I visited last week.

This is the village. I was born in the village.