Câu hỏi: Slavery was abolished in the US in the 19th century.

A. instituted

B. eradicated 

C. eliminated

D. required

Câu 1: There is growing concern about the way man has destroyed the environment.

A. reduce

B. attraction

C. consideration

D. speculation

Câu 2: I take my hat off to all those people who worked hard to get the contract.

A. congratulate

B. unrespect

C. welcome

D. encourage

Câu 3: Maureen usually felt depressed on Mondays, because she never got enough sleep on the weekends.

A. unhappy

B. affluent

C. glum

D. understanding

Câu 4: Fruit and vegetables grew in abundance on the island. The islanders even exported the surplus.

A. large quantity

B. rareness

C. excess

D. sufficiency

Câu 5: Adverse weather conditions made it difficult to play the game.

A. favorable

B. bad

C. comfortable

D. severe

Câu 6: We are very grateful to Professor Humble for his generosity in donating this wonderful painting to the museum.

A. meanness

B. sympathy

C. gratitude

D. churlishness