单项选择题


Questions 32 to 35 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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单项选择题
A．In 1875.B．In 1895.C．In 1881.D．In 1818.
A．In 1875.
B．In 1895.
C．In 1881.
D．In 1818.
单项选择题
In order to be happy, Wilson tried many ways such as ______.
A．borrowing books on how to become happier
B．trying to keep a sunny smile
C．starting his conversations with "Hello!"
D．trying to have a good rest
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