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

A. unplanned

B. deliberate

C. accidental

D. unintentional

Câu 1: There has been no discernible improvement in the noise levels since lorries were banned.

A. clear

B. obvious

C. thin

D. insignificant

Câu 2: 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 3: There is growing concern about the way man has destroyed the environment.

A. ease

B. attraction

C. consideration

D. speculation

Câu 4: 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 5: We cannot clean up our polluted rivers and seas overnight.

A. cleared

B. purified

C. honored

D. respected

Câu 6: The US troops are using much more sophisticated weapons in the Far East.

A. expensive

B. complicated

C. simple and easy to use

D. difficult to operate