Answer:
I am just so happy to see their are open positions for such a job. I do my best with pets and have many past experiences [insert past experiences here] I trust I'll do well when hired for this role. I take good care of animals and know how to treat them well. People call me an animal person. If hired, ill be very trusting towards both my co workers and my supervisor. I promise, I won't let you down.
Au revoir~
[Insert contact information here]
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Hope I helped! :)