III.
1. It was his uncle whom the boy visited last month.
2. It was I and she who sang together at the party.
3. It was Nam's father who got angry with him.
4. It was football that the boys played all day long.
5. It was the girl who received a letter from her friend yesterday.
6. It was his presence at the meeting that frightened the children.
7. It was on my birthday party that my mother bought me a present.
8. It was the neighbor who told them about it.
9. It was last night that my friend came to see me late.
10. It was the goal that that boy scored for his team.
11. It was the dog that grabbed at the piece of meat and ran away.
12. It was the roof that the strong wind blew off.
13. It was at the railway station that the police arrested the man.
14. It is the man who is learning English.
15. It was the English book that the woman gave him.
16. It was a postcard that she sent her friend.
17. It was Hoa who borrowed some English books from Long.
18. It was his grandfather that the little boy greeted in a strange language.
19. It was the policeman that the pedestrian asked a lot of questions.
20. It was the stranger that the dog barked at.
IV.
1. isn't it
2. don't they
3. hadn't you
4. aren't they
5. does it
6. shall we
7. will you
8. weren't they
9. didn't he
10. will there
