Câu hỏi: The yearly growth of the gross national product is often used as an indicator of a nation's economy.

A. annual

B. irrefutable

C. tentative

D. routine

Câu 1: No vehicle weighing over 3.5 tons is allowed on this bridge, according to traffic signs placed at both ends of the structure.

A. corruption

B. construction

C. connection

D. confusion

Câu 2: It is really incredible that he is unaware of such basic facts.

A. difficult

B. unbelievable

C. imaginable

D. disappointed

Câu 3: Many scientists agree that global warming poses great threats to all species on Earth.

A. irritations

B. annoyances

C. fears

D. risks

Câu 4: Reaching 35 and obviously aging, Jane has to make up her mind on her future very soon.

A. give a thought about

B. pay attention to

C. prepare a plan for

D. make a decision on

Câu 5: Don't be concerned about your mother's illness; she'll recover soon.

A. surprised at

B. worried about 

C. embarrassed at

D. angry with

Câu 6: The education system is a mirror that reflects the culture.

A. points

B. explains

C. shows

D. gets