一道英文题目：根据首字母补全单词,使文章通顺

一道英文题目：根据首字母补全单词,使文章通顺
there are many dufferent k___ og animals in the zoo.We see the zoo keepers give t___ food to eat.They don't h___ tp find food for themselves.They just eat,walk and sleep all day.So many of us think that the animals there are h___.But most of them are sda.Thy?They are not free!
Animals l___ elephants ,monkeys and tiges usually live freely and happily in forestsor mountains.Tigers,for exmple,run,jump and play w___ their children and catch small animals for f___.But now they have to stay i___ the small rppms in the zoo.Their life in the zoo is d___ from their life in the froests.
Now all of us think more animals should go b___ to the forests.Do you think this is true?