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

A. ambitious

B. creative

C. idealistic

D. practical

Câu 2: A good leader should not be conservative, but rather ______ to new ideas.

A. receptive

B. acceptable

C. permissive

D. applicable

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

A. education

B. employment

C. stabilization

D. wealth

Câu 5: Those companies were closed due to some seriously financial problems.

A. taken off

B. put away

C. wiped out

D. gone over

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

A. variety

B. changes

C. conservation

D. number