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Ruslan
It isn't "when teeth aged" or "as teeth age"?
When teeth aged, they begin to thin and break
As teeth age, they begin to thin and break
Jan 9, 2016 6:20 AM
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Answers · 6
This sounds natural to me:
As the teeth age, they begin to thin and break.
January 9, 2016
As teeth age.
January 9, 2016
