21. C

22. B

23. A

24. D

25. A

13. C

14. B

15. D

16. B

17. C

18. A

19. D

20. B

1. A

2. D

3. C

4. B

1. It aims to create opportunities for all children in Vietnam to attend school, learn and succeed.

2. It’s Education for Disadvantaged Young People.

3. It’s Providing Education Opportunities for Children with Disabilities.

4. Its aim is to better prepare children for the challenges in the future.

1. a

2. b

3. a

4. c

1. This city is the most popular place with foreign visitors.

2. In many supermarkets, locally produced goods are cheaper than imported goods.

3. The United Nations is the largest international organisation.

4. Our country today is more active on the International stage than it was in the past.

1. easier

2. more attractive

3. less competitive

4. the most popular

1. 1890s

2. 1921

3. 1971

4. 1971

5. 1991

1. D

2. A

3. C

4. B

Main responsibilities: A, D, F

Main qualities: B, C, E, G, H