赞题库-背景图
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.
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热门试题

单项选择题A．To save space.B．To help the plants grow healthily.C．To make plants yield more fruits.D．To water the plants easily.

A．To save space.
B．To help the plants grow healthily.
C．To make plants yield more fruits.
D．To water the plants easily.

单项选择题A．To search for the missing people.B．To investigate a fire on one of the islands.C．To look for the missing woman.D．To rescue the British soldiers.

A．To search for the missing people.
B．To investigate a fire on one of the islands.
C．To look for the missing woman.
D．To rescue the British soldiers.