The old scientist hopes that people use both sides____the paper

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Theoldscientisthopesthatpeopleusebothsides____thepaperTheoldscientisthopesthatpeopleusebothsides____

The old scientist hopes that people use both sides____the paper
The old scientist hopes that people use both sides____the paper

The old scientist hopes that people use both sides____the paper
both sides【of】the paper

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