Which of the following is the main idea of this passage（）
A. Fire can help people in many ways.
B. Fire can be both helpful and dangerous.
C. Fire can bum things and people.
D. We must be careful with matches.
查看答案
The distance from the center of England to the south coast is about （）
A. one hundred miles
B. three hundred miles
C. one hundred and fifty miles’
D. six hundred miles
In winter, people in Devon and Cornwall （）
A. seldom see snow
B. never see any snow
C. may have several feet of snow
D. often see snow
What two problems can man solve by burning garbage（）
A. The shortage of energy and air pollution.
B. The shortage of energy and the land to hold garbage.
C. Air pollution and the shortage of fossil fuel.
D. Air pollution and the shortage of land to hold garbag
The （） of this policy would relieve the unions of a tremendous burden.
A. reference
B. adoption
C. assumption
D. innovation
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