Câu hỏi: All classifications of human societies and cultures are arbitrary.

A. useful

B. haphazard

C. insufficient

D. ambiguous

Câu 1: The Bali Tiger was declared extinct in 1937 due to hunting and habitat loss.

A. reserve

B. generation

C. natural environment

D. diversity

Câu 2: Most of the school-leavers are sanguine about the idea of going to work and earning money.

A. fearsome

B. expected

C. excited

D. optimistic

Câu 3: Once in a while I visit my grandparents on the farm and stay there for some days.

A. Regularly

B. Sometimes

C. Usually

D. Rarely

Câu 4: The repeated commercials on TV distract many viewers from watching their favorite programmes.

A. advertisements

B. contests

C. economics

D. businesses

Câu 5: With respect to maneuverability, few birds can equal the capabilities of the hummingbird, which hovers for long periods and even flies backward.

A. With regard to

B. With fondness to

C. In appreciation of 

D. In favor of

Câu 6: The whole village was wiped out in the bombing raids.

A. changed completely 

B. cleaned well

C. destroyed completely

D. removed quickly