Population growth rates vary among regions and even among countries within the same region.
A. restrain B. stay unchanged C. remain unstable D. fluctuate

A chronic lack of sleep may make us irritable and reduces our motivation to work.
A. uncomfortable B. responsive C. calm D. miserable

The distinction between schooling and education implied by this remark is important.
A. explicit B. implicit C. obscure D. odd

During the five- decade history the Asian Games have been advancing in all aspects.
A. holding at B. holding back C. holding to D. holding by

The politician’s conviction for tax fraud jeopardized his future in public life.
A. rejuvenated B. penalized C. jettisoned D. endangered

A mediocre student who gets low grades will have trouble getting into an Ivy League college.
A. average B. lazy C. moronic D. diligent

If we had taken his sage advice, we wouldn’t be in so much trouble now.
A. willing B. sturdy C. wise D. eager

Fruit and vegetables grew in abundance on the island. The islanders even exported the surplus.
A. large quantity B. small quantity C. excess D. sufficiency

There is growing concern about the way man has destroyed the environment.
A. ease B. attraction C. consideration D. speculation

He was so insubordinate that he lost his job within a week.
A. fresh B. disobedient C. obedient D. understanding