Câu hỏi: We cannot clean up our polluted rivers and seas overnight.

A. cleared

B. purified

C. honored

D. respected

Câu 1: Visitors, especially children, can go there to learn how to recognize the different species of animals and plants.

A. pure

B. same

C. alike

D. whole

Câu 2: He revealed his intentions of leaving the company to the manager during the office dinner party.

A. disclosed

B. concealed

C. misled

D. influenced

Câu 3: His career in the illicit drug trade ended with the police raid this morning.

A. elicited

B. irregular

C. secret

D. legal

Câu 4: Because Jack defaulted on his loan, the bank took him to court.

A. failed to pay

B. paid in full

C. had a bad personality

D. was paid much money

Câu 5: Due to an increase in population and the use of nearby land for farming, there are toxic levels of chemicals in the water.

A. fall

B. lowness

C. shortage

D. illness

Câu 6: An interesting feature of this park is the Orphanage where lots of orphaned or abandoned animals are taken care of.

A. bad

B. ugly

C. weak

D. dull