单项选择题


Passage Two
Questions 30 to 32 are based on the passage you have just heard.

A．To drive the train after it is started automatically.
B．To start the train and to drive it when necessary.
C．To take care of the passengers on the train.
D．To send commanding signals to the command spot.
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A．They will take one of the six major tests.B．They will be given a pop test.C．They will be required to read a short story in class.D．They will have to write a composition.
A．They will take one of the six major tests.
B．They will be given a pop test.
C．They will be required to read a short story in class.
D．They will have to write a composition.
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