单项选择题

A．It is extremely dangerous to fly in the dark.
B．Noise regulations restrict the hours of airport operation.
C．Some of its runways are not in good condition.
D．Cargo planes produce more disturbing noises at night.
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单项选择题
A．Because he can’t find an ideal date.B．Because he is too common a person.C．Because he has failed to realize his dreams.D．Because he is deceived by Mrs. Right.
A．Because he can’t find an ideal date.
B．Because he is too common a person.
C．Because he has failed to realize his dreams.
D．Because he is deceived by Mrs. Right.
单项选择题
A．It is closing down some factories in the US.B．It no longer offers high-paying jobs.C．The number of its employees is doubled after the restructuring.D．It is manufacturing as many cars as before.
A．It is closing down some factories in the US.
B．It no longer offers high-paying jobs.
C．The number of its employees is doubled after the restructuring.
D．It is manufacturing as many cars as before.
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