Reorder the words to make correct sentences

reorder the words to make correct sentences.
1. the/ as/ your/ Using/ hobby/ your/ harmful/ can/ computer/ be/ to /health.
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2. Joe /harder/ her/ than /studies/ other/ in/ students/ class.
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3. the/ Roads/ city/ are/ often/ in /more/ tan/ in /crowded/ small/those / the / town.
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