Câu hỏi: I clearly remember talking to him in a chance meeting last summer.

A. unplanned

B. deliberate

C. accidental

D. unintentional

Câu 1: When did Nguyen Hue defeat Thanh enemies?

A. peoples

B. animals 

C. friends

D. kids

Câu 2: We cannot clean up our polluted rivers and seas overnight.

A. cleared

B. purified

C. honored

D. respected

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

A. fresh

B. disobedient

C. obedient

D. understanding

Câu 5: Toxic chemicals continue to be dumped in the North Sea.

A. stop

B. go on

C. follow

D. begin

Câu 6: 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