Even if we have failed, we should______.

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• 听力原文：M: We have to hurry if we hope not to miss the beginning of the film. It' s already 7:35.

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• A meager diet may give you health and long life, but it's not much fun—and it might not even be necessary. We may be able to hang on to most of that youthful vigor even if we don't start to diet until old age.

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• If we were asked exactly what we were doing a year ago，we should probably have to say that we could not remember. But if we had kept a book and had written in it an account of what we did each day, we should be able to give an answer to the question.

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