单项选择题

A．The residents.
B．The passers.
C．The soldiers.
D．The police.
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单项选择题
A．They had better finish the project as soon as possible.B．They had better try their luck to finish the project.C．They are so lucky to have the project being put off.D．They had better have a risk to extend the project.
A．They had better finish the project as soon as possible.
B．They had better try their luck to finish the project.
C．They are so lucky to have the project being put off.
D．They had better have a risk to extend the project.
单项选择题
A．To drive the train after it is started automatically.B．To start the train and drive it when necessary.C．To take care of the passengers in the train.D．To send commanding signals to the command spot.
A．To drive the train after it is started automatically.
B．To start the train and drive it when necessary.
C．To take care of the passengers in the train.
D．To send commanding signals to the command spot.
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