英语阅读理解填词,急,
Many people may think (a 1 ) in the zoo are happy and lucky ,(b 2 ) most of them are sad .Do you know why?Animals (l 3 ) tigers,lions and bars usually (l 4 ) in forsts or mountains .They run,jump ,play (w 5 ) their children and catch small animals for (f 6 ) .But now they hav to stay ia cages or small rooms in the (z 7 ).They do not have to find food by themselves ,becaus the zoo keepers feed them .They do nothing but eat,walk and sleep (e 8 ) day .Their life in the zoo is quiet different from that (i 9 ) the forests (b 10 ) they are not free.