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

Strongly advocating health foods, Jane doesn’t eat any chocolate.
A. supporting B. impugning C. advising D. denying

Unless the two signatures are identical, the bank won’t honor the check.
A. similar B. different C. fake D. genuine

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

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

She had a cozy little apartment in Boston.
A. uncomfortable B. warm C. lazy D. dirty