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

A. cleared

B. purified

C. honored

D. respected

Câu 1: 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 2: He was so insubordinate that he lost his job within a week.

A. fresh

B. disobedient

C. obedient

D. understanding

Câu 3: Unless you get your information from a credible website, you should doubt the veracity of the facts until you have confirmed them else where.

A. inexactness

B. falsehoodness

C. unaccuracy

D. unfairness

Câu 4: You can slide the front seats forward if necessary.

A. back

B. beside

C. above

D. under

Câu 5: His career in the illicit drug trade ended with the police raid this morning.

A. elicited

B. irregular

C. secret

D. legal

Câu 6: Rapid run-off would cause frequent floods and leave little water during fry seasons.

A. Bad

B. Weak

C. Slow

D. Ugly