单项选择题


Questions 11-13 are based on the following passage about an introduction to balloons. You now have 15 seconds to read Questions 11-13.
Why do people usually fly hot-air balloons in summer

A．Balloons are easier to lift.
B．It is a good time for exercise.
C．The visibility is good.
D．There is no danger in flying.
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单项选择题
What happened ’to the U. S. job market
A．There was a huge increase in new jobs lately.
B．About 75,000 new jobs were created last month.
C．Some 300,000 new workers were employed last year.
D．There was a growth of new jobs in the past six years.
单项选择题
Where did Mr. Hudson grow up [A] New York. [BI Chicago. [C] Harvard. [D] Washington.
Where did Mr. Hudson grow up [A] New York. [BI Chicago. [C] Harvard. [D] Washington.
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