1、How old are you?old：adj. 年老的；陈旧的；古老的；以前的；原来的；n. 古时；how：adv. （后接形容词或副词）多少，多么，多大 。How old are you---thirty odd?你多大？三十多？

2、Whats your age?Whats your age? And since when are you doing this? Sister. 你多大了？你什么时候开始干这个的，大姐？