Wild animals can take care of themselves．But __1__ need special care．You can loam much about animals __2__ taking care of a pet．Owning a pet is almost like __3__ a patient．You must think about __4__ your pet needs．You have to give it food and water and a safe home．You must teach your pet and love your pet．__5_ You do all these things well，you will have a healthy pet．
Some people like dogs best．They give them food and water and a __6__ to sleep in．Dogs love to take walks．Most dogs can learn tricks（戏法），like fetching a ball or rolling over and so on．
Most children like cats best．They __7__ playing with them．Cats like __8__ very much，so they spend most of me time on sleep．Since people regard them as pets，they hardly have to look __9__ anything to eat，__10__ some of them are frightened of mice．
1．A．animals B．pets C．humans D．plants
2．A．by B．with C．in D．on
3．A．doing B．making C．having D．playing
4．A．when B．where C．what D．why
5．A．If B．But C．Though D．Since
6．A．floor B．sofa C．desk D．place
7．A．want B．enjoy C．wish D．mind
8．A．meat B．walking C．look D．sleeping
9．A．up B．for C．after D．over
10．A．and B．but C．so D．even