高中短文改错..

高中短文改错..
希望知道的来改下,十行中有一行是对的,一次只能改一个词（可增,删,改）
1.Now a lot of people are keeping dogs for pets because
2.dogs are loyal but friendly.They can bring love and comfort
3.to people,especially some old people who feel alone.However,
4.there were more disadvantages than advantages.Dogs' barking
5.will disturb the nieghbors and some dogs even attack passer-by in
6.the streets,where is dangerous to people's life.Besides,some
7.dogs leave for their waste everywhere in the streets,which is
8.bad for our environment.Finally,keeping dogs cost a lot of money.
9.I suggest no more dogs should be kept.Dogs are our friends,
10.and they should be considered as out toys or slaves.