1.The old concerns lose importance and some of them vanish altogether.

A. develop B. disappear
C . linger D. renew

2. In the United States educational system, intermediate school is the transitional phase between the primary grades and high school.

A. stage B. notion
C . pattern D. alternative

3.Fluoride deters tooth decay by reducing the growth of bacteria that destroy tooth enamel.

A. facilitates B. overwhelms
C . inhibits D. loosens

4. The firm of Bonnin and Morris in Philadelphia was probably the first American company to manufacture porcelain.

A. silverware B. crystal
C .china D. linen

5.Gunpowder was used extensively in firearms prior to 1890.

A. in B. around
C . from D. before

6.We packed up the things I had accumulated over the last years and left for good.

A. close B. near
C . past D. final

7.The chemical is lethal to rats but safe to cattle.

A. toxic B. harmful
C . deadly D. contagious

8.She is very conscientious about her work. 

A. worried B. careful 
C . anxious D. nervous 

9. She has consolidated her power. 

A. strengthened B. won 
C . hardened D. united 

10.The drinking water is contaminated with impurities. 

A. blackened B. polluted 
C . darkened D. mixed 

11.Her novel depicts a futuristic America. 

A. writes B. sketches 
C . describes D. indicates 

12. He expressed concern that the ship might be in distress. 

A. despair B. difficulties 
C. need D. danger 

13.They are endeavoring to change society as a whole. 

A. trying B. working 
C . doing D. making 

14.Your eternal boasting annoys everyone. 

A. unchangeable B. everlasting 
C . boring D. monotonous 

15. The other women seemed contented and they even exhibited their bellies with pride. 
A. demonstrated B. uncovered 
C . spread D. showed 

Key: BACCD CCBAB CDABD

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