Some cats might be frightened by loud noises., Young parrots ought to be fed by hand., An excitable puppy shouldn't be left alone at home., Your furniture might be damaged by your cat., Dogs have to be walked several times a day., Dolphins may be trained to do many things., A rabbit shouldn't be allowed to run free in the house., Baby crocodiles mustn't be kept as pets., Careless people shouldn't be allowed to have pets., Some people believe that animals have to be used for medical research.,

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