3.We have explored or sent robot spaceships to the

We are sorry to have to complain of the quality of the shipment of wheat , but it is far （) the sample you sent us.

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An expert, together with some assistants, have been sent to help us with the project.

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Suppose we built a robot（机器人)to explore the planet Mars. We provide the robot

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Having been caught on the spot, the American spy was sent to the General Lee.

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Having been sent to the wrong address, the supplies ordered from the Acme Company did not

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Polar explorers have to be extremely ______ to endure the abominable climate and other har

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阅读理解。 Suppose we built a robot to explore the planet Mars.We provide the robot with seeing dete

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