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- Ron's been such an eager beaver since joining the company. He volunteers for everything and never complains.
- Jack likes his teacher and works hard for her, but his classmates call him an eager beaver.
- The man who was promoted to be manager was an eager beaver who got to work early and left late and was always offering to do extra work.
- My colleague is an eager beaver and is always ready to work hard when we need him.
- He gets to work every day before eight. He's a real eager beaver.