Câu hỏi: These projects have proved to be very effective in dealing with global climate change, which was considered an insoluble problem in the first 30 years of this century.

A. hard

B. challenging

C. unsolvable

D. unbearable

Câu 1: The promise of jobs and prosperity pulls people to cities.

A. education

B. employment

C. stabilization

D. wealth

Câu 2: With the dawn of space exploration, the notion that atmospheric conditions on Earth may be unique in the solar system was strengthened.

A. outcome

B. continuation

C. beginning

D. expansion

Câu 3: People who hold optimistic view believe that cities of the future will increase the general well-being of individuals and societies.

A. health state

B. quality of life

C. level of development

D. growth rate

Câu 4: There's a real mix of people in Brighton. It has a very cosmopolitan feel to it.

A. busy

B. hectic

C. multi-cultural

D. diversified

Câu 5: She's a down-to-earth woman with no pretensions.

A. ambitious

B. creative

C. idealistic

D. practical

Câu 6: Professor Berg was very interested in the diversity of cultures all over the world.

A. variety

B. changes

C. conservation

D. number