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—I want to put up the picture on the wall. Would you mind helping me with it?

—____. With pleasure.

A.Of course B.Certainly not C.You'd better not D.Thanks a lot

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Scientist Stephen Hawking had to work really hard to speak.He chose letters and words from a screen controlled by movements of a muscle in his cheek.However,the slow system he used might soon be replaced.With a very different approach,doctors have found a way to get a person’s speech directly from their brain.

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