Many people may think that a{#blank#}1{#/blank#} in the zoo are happy and lucky, but most of them are sad. Do you know why? Animals l{#blank#}2{#/blank#} tigers, lions and bears usually l{#blank#}3{#/blank#} in forests or mountains. They run, jump, play w{#blank#}4{#/blank#} their children and catch small animals for f{#blank#}5{#/blank#}. But now they have to stay in cages or small rooms in the z{#blank#}6{#/blank#}. They do not have to find food by themselves, because the zookeepers feed them. They do n{#blank#}7{#/blank#} but eat, walk and sleep every day. Their l{#blank#}8{#/blank#} in the zoo is quite d{#blank#}9{#/blank#} from that in the forests b{#blank#}10{#/blank#} they are not free.