根据短文理解，从A、B、C、D四个选项中选择最佳答案填空。

    Last month we bought our two year-old daughter a little 1 There were few children of her age where we 2 and we thought a dog would make her less 3. We were right. They played together  4 all day. Our daughter now smiles and laughs a lot more than before. In this way it was like having two 5 in the house. Both of them are very dirty and they 6 when they do not get what they want. The dog is 7 to look after than my daughter-he always 8 all his food and we don't have many dirty clothes to 9 My wife is also very happy because I have given up 10. The dog doesn't like the smell.