<正>猜谜是一种很好的锻炼思维的方式。同学们,快叫上你们的爸爸妈妈或好朋友,大家一起来猜谜语,看谁先猜出来哦!1.I’m tall when I’m young and I’m short when I’m old.What am I?Hint:You may need it when you are having your birthday party.