Câu hỏi: Toxic chemicals continue to be dumped in the North Sea.

A. stop

B. go on

C. follow

D. begin

Câu 1: His career in the illicit drug trade ended with the police raid this morning.

A. elicited

B. irregular

C. secret

D. legal

Câu 2: Those who advocate for doctor-assisted suicide say the terminally ill should not have to suffer.

A. support

B. oppose

C. annul

D. convict

Câu 3: 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 4: In remote communities, it's important to replenish stocks before the winter sets in.

A. remake

B. empty

C. refill

D. repeat

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

A. favorable

B. bad

C. comfortable

D. severe

Câu 6: This national park is special because it has plants and animals from both tropical and temperate zones.

A. warm

B. pole

C. cool

D. wet