Western nations have older and shrinking populations since they entered the 21st century and their _______ birth rates have also posed problems.
A. revolving
B. investigating
C. restoring
D. fluctuating
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She didn't want to marry him and was ________ against him because he had only a bachelor's degree and didn't meet her expectations for marriage.
A. irrational
B. loyal
C. prejudiced
D. rival
The president is in trouble and will have to work hard to _______ his credibility after people discovered that he was not telling the truth.
A. restrict
B. restock
C. restrain
D. restore
To study a number of subjects in the humanities has been both enjoyable and _______ , providing me with a new and different perspective on the world in which we live.
A. enlightened
B. enlightening
C. protested
D. protesting
People are concerned about the environment issue because air and water pollution not only affects everyone's health but also makes it difficult for businesses to __________ .
A. profit
B. profile
C. profess
D. prefer