My friends Amy is a beautiful girl. She often does morning exercises on the weekend. She sometimes goes on a picnic with her friends. She likes swimming so much. So her favorite season is summer. She can go swimming every day. And she can also eat her favorite food ice cream and plays games with her friends on summer vacation. But her brother Tom doesn't like summer. He likes winter best, because he likes playing in the snow and making a snowman all the time. His birthday is in December. Everyone has their own favorite season. So which season do you like best?
—Because ________.