SORU: aşağıdaki parçada numaralanmış yerlereuygun düşen sözcük ya da ifadeyi bulunuz
Dogs are thought to be easier to train than cats, but this
may be because they evolved to hunt in packs,
cooperate with other dogs and be obedient (15)---- a
leader. Their memory requires constant reinforcement,
(16)---- they quickly forget. Nonetheless, they are often
(17)---- simply by giving them the attention they need. On
the contrary, cats evolved to hunt solo and are much
more devious. In some cases, they (18)---- but do not
have the dog’s desire to please. There is some
evidence that cats remember specific events longer
than dogs do, but (19)---- their excellent memory for
people and spaces, both species are able to build
complex mental maps of their surroundings and find
their way home.