单项选择题

A．They may crash because of nature disasters or human faults.
B．The world’s weather conditions are getting worse.
C．The airport safety inspections are getting worse.
D．Airplanes are often overloaded nowadays.
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单项选择题
A．Because she was a black girl.B．Because she got the highest average in the class.C．Because she wanted to hit the chairman’s wife.D．Because she refused to retake the exam.
A．Because she was a black girl.
B．Because she got the highest average in the class.
C．Because she wanted to hit the chairman’s wife.
D．Because she refused to retake the exam.
单项选择题
A．He was very slow in doing things.B．He was the right person to do such a thing.C．He is expected to do such a thing.D．He would never do such a thing.
A．He was very slow in doing things.
B．He was the right person to do such a thing.
C．He is expected to do such a thing.
D．He would never do such a thing.
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