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: 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 2: It is crucial that urban people not look down on rural areas.

A. evil

B. optional

C. unnecessary

D. vital

Câu 3: The average, ________watches television for about 15 hours a week.

A. spectator

B. observer

C. audience

D. viewer

Câu 4: You should find out as much as possible about the job and the vacancy.

A. a seat that is available

B. a part of a newspaper where job are advertised

C. a space

D. a job that is available

Câu 5: She was brought up in the slums of Leeds.

A. downtown area

B. industrial area

C. poor area

D. rural area

Câu 6: Although Brenda came last, everyone agreed she had ________ her best.

A. had

B. got

C. done

D. made