One day Mon said to me "I love you. son" 　　I was very happy that day and went to school. 　　6 o'clock in the afternoon, i went back home.Dad was also back and there was a big cake on the table. 　　I asked him "why there is a cake? can i eat it?" 　　Dad answered "No.Mom should eat first." 　　"why?"I asked again. 　　"because it's your mom's birthday" 　　then i remembered mom said "i love you" to me in the morning. 　　it was mom's birthday,but i didn't know that. 　　and she said "i love you"to me.