II. Rearrange the sentences using the following words:
1. about/ presentation/ water/ about/ air pollution?/ How/ and/ giving/ a/
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2. is/ water/ for/ There/ on Earth./ plentiful/ life/
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3. I/ ride/ bike./ primary school,/ started/ had learnt/ how/ By/ I/ the time/ a/ to/
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4. stay/ City/ three/ We’ve/ for/ in/ decided/ Ho Chi Minh/ days./ to/
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5. Mars/ in/ Scientists/ planning/ to explore/ future./ are/ people/ to send/ the near/
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