您要查找的是不是：
- How long have you been surfing? 你冲浪已有多长时间了
- Tax official: How long have you been in china? 税务局：在中国呆多长时间了？
- How long have you been employed at this job? 你受雇做这个工作有多久了?
- How long have you been over here? 你到这里来有多久了？
- How long have you been travelling? 你们旅行了多长时间？
- How long have you been engaged in your trade? 你干这一行有多久了?
- How long have you been waiting for the bus? 你等公共汽车等了多久?
- How long have you been a trading staffer? 你作为一名贸易人员有多长时间了?
- How long have you been taking this magazine? 你订阅这种杂志有多久了？
- How long have you been in the garment business? 你做服装生意有多长时间了?
- By the way,how long have you been in this business? 顺便问一下，你干这行多久了?
- How long have you been in Shanghai? 你来上海多久了？
- How long have you been waited for the bus? 你等公共汽车等了多久?
- How long have you been in business, Mr. Kevin? 你们公司干这一行有多久了?
- How long have you been in my army? 你在我的军队里呆了多久了?
- How long have you been in this game? 你干这行当多长时间了?
- How long have you been living in this country? 你在这个国家居住多久啦?
- How long have you been unemployed? 你失业多久了?
- How long have you been a League Member? 你入团多久了?
- How long have you been a detective, sir? 先生,你当侦探多久了?
