use, pollute, provide, educate, care, save, endanger
1. We're trying to _____ the manatees. 2. There _____ to be a lot of manatees. 3. Some of the swamps have become _____. 4. I feel that zoos _____ clean and safe places for _____ animals to live and help to _____ the public about _____ for them.
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