单项选择题

A．The increasing output of tobacco.
B．The rapid development of cigarette-making machine.
C．The rapid development of cigarette-making factories.
D．The great number of people engaged in cigarette producing.
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单项选择题
A．The man thinks travelling by air is quite safe.B．Both speakers feel nervous when flying.C．The woman never travels by plane.D．The speakers feel sad about the serious loss of life.
A．The man thinks travelling by air is quite safe.
B．Both speakers feel nervous when flying.
C．The woman never travels by plane.
D．The speakers feel sad about the serious loss of life.
单项选择题
A．They may not be able to take their vacation.B．It may snow during their vacation.C．They need more money.D．They may miss graduation.
A．They may not be able to take their vacation.
B．It may snow during their vacation.
C．They need more money.
D．They may miss graduation.
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