Câu hỏi: She had a cozy little apartment in Boston.

A. uncomfortable

B. warm

C. lazy

D. dirty

Câu 1: We cannot clean up our polluted rivers and seas overnight.

A. cleared

B. purified

C. honored

D. respected

Câu 2: Adverse weather conditions made it difficult to play the game.

A. favorable

B. bad

C. comfortable

D. severe

Câu 3: Most of the guests at the dinner party chose to dress elegantly, but one man wore jeans and a T-shirt, he was later identified as a high school teacher.

A. unsophisticatedly

B. decently

C. gaudily

D. gracefully

Câu 4: There has been no discernible improvement in the noise levels since lorries were banned.

A. clear

B. obvious

C. thin

D. insignificant

Câu 5: Rapid run-off would cause frequent floods and leave little water during fry seasons.

A. Bad

B. Weak

C. Slow

D. Ugly

Câu 6: 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