单项选择题

A．Crowded air traffic.
B．The large size of airplanes.
C．Mistakes by air traffic controllers.
D．Bad weather.
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单项选择题
A．The woman is upset because she didn’’t pass the examination.B．The woman doesn’’t hope for a promotion.C．The man gets used to counting on the woman.D．The man thinks that the women should be promoted.
A．The woman is upset because she didn’’t pass the examination.
B．The woman doesn’’t hope for a promotion.
C．The man gets used to counting on the woman.
D．The man thinks that the women should be promoted.
单项选择题
A．To borrow his book.B．To talk about the term paper.C．To invite him to go canoeing.D．To ask him out for dinner.
A．To borrow his book.
B．To talk about the term paper.
C．To invite him to go canoeing.
D．To ask him out for dinner.
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