书面表达。
现在养宠物的人越来越多，虽然宠物给人们带来了很多快乐，但同时也引发了不少问题。
请写一篇短文，描述一下养宠物的弊端。具体内容包括：
1．吵、脏、乱影响环境；
2．带来经济上额外的花费；
3．……
注意：1．词数100左右；
2．可以适当增加细节，以使行文连贯；
3．标题已为你写好。
Why I Quit Keeping a Pet
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One possible version
As is known to all, pets keep people company. They are like grandchildren to the aged, and brothers and
sisters to the young. But, on the other hand, pets act as your family members, who are always demanding.
The reasons that I quit keeping a pet are as follows: Firstly, the noises, dirt and fur caused by pets are
much more annoying and troublesome than I expected, arid keeping them made me feel like a hardworking,
unpaid maid. Secondly, the cost of keeping a pet is surprisingly high, you have to buy endless things for your
pet, just as for your kid.