Who is Kangkang?随便Today is Kangkang' birthday. She is very happy. Her parents are happy,too. In the morning, her parents go to the market for some food. Kangkang stays at home with her friends. They listen to some music, watch TV and play computer games. In the afternoon, her parents get ready for her birthday party. They cook much food. They have a wonderful dinner. They say "Happy birthday, Kangkang!" Kangkang is very happy. She has a good time.这是文章描述，所以用的是一般现在时。如果要用过去式，就把所有的动词变一下就OK了。很高兴为你解答！老师祝你学习进步！望采纳，多谢你的问题！^_^