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第83页

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Many students are optimistic about life in the next fifty

years. They think the world will be a better place and that

our lives will be greatly improved. What's more, people

will have a higher standard of living and live longer.

However, other students are worried about the future.

They say that the world will become more crowded. Therefore,

there will be even more environmental problems and we'll

live in a world with less energy available.

But in my opinion, I think we will find ways to solve these problems and that everyone will live more happily.