III. Make sentences using the words and phrases given.
1. They / asked / whether / there / be /water / Mars.
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2. What / happen / if / we / not / save / natural resources? _______________________________________________________________________
3. Thanks to / progress / science and technology, / human life /change / better and better / recently.
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4. New York / be / biggest / city / the USA, / but / not / the capital.
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5. Noise pollution / big cities / can / lead / hearing / problems.
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They asked whether there were water in Mars.
What would happen if we didn't save natural resources?
Thanks to the progress of science and technology, human life has become better and better.
New York is the biggest city in the USA, but not the capital.
Noise pollution in big cities can lead to hearing problems.