4. … its proximity to new York, new Jersey is an important link in the nation’s transportation system.

a. Since
b. As a result
c. However
d. Because of

Jawaban : D

5. Agronomists work to improve the quality of crops, increase the yield of fields, and … of the soil.

a. the quality is maintained
b. maintain the quality
c. the maintenance of the quality
d. maintaining the quality

Jawaban : B

6.  When … impulses from many of the neurons in one part of the brain, an epileptic seizure occurs.

a. the simultaneous bursts
b. simultaneously burst
c. there are simultaneous bursts of
d. simultaneously bursting

Jawaban : C

7. The gray scale, a progressive series of shades ranging from black to white, is used in computer
graphics ---- detail to graphical images.

a. added
b. to add
c. are added
d. and add

Jawaban : B

8. By ---- excluding competition from an industry, governments have often created public service monopolies.

a. they adopt laws
b. laws are adopted
c. adopting laws
d. having laws adopt

Jawaban : C