根据短文内容补全表格，每空不能超过三个单词。

    I have three friends. They are Lucy, Mary and Mike. They have their favourite pets(宠物). The dog is Lucy's favourite. She thinks(认为) it can help us and it is our good friend. Mary likes the cat. She thinks it is nice to play with it. Mike says his favourite pet is the bird. It can sing very well.

Name	Favourite pets	Reason(原因)
Lucy	The	It can us. It's our .
Mary	The	It's nice to play with it.
Mike	The bird	It can very well.