42. ___
A. It increased the students’ while blood cell count.
B. It increased some students’ energy level.
C. It improved the students’ ability to play musical instruments.
D. It released a natural painkiller in some students’ bodies.
44. ___
A. Many artists lost faith in the value of art.
B. Many artists moved away from large cities.
C. Many artists were forced to take jobs in other fields.
D. Many artists in the United States moved to other countries.
45. ___
A. People wording in a large factory.
B. People walking on crowded city streets.
C. An everyday activity in a small town.
D. A well-known historical event.
46. ___
A. The populations of small towns increased rapidly.
B. Art critics in cites began to take notice of regionalism.
C. Some regionalist painters began a new art movement.
D. Society became more internationally focused.
47. ___
A. She was asked to lead a group of inexperienced cavers there.
B. It was the first cave that she had ever visited.
Clearly marked trails mode it easy to explore.
D. She hoped to make a discovery.
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