您要查找的是不是：
- How long have they been on TV? 回答：翻译:他们上电视有多久了?
- How long have they been gabbing? ! 她们喋喋不休的，要讲多久呀？！
- How long have they been gabbing?! 她们喋喋不休的，要讲多久呀?！
- How long have they been married? 他们结婚已经多久了?
- How long had they been singing? He wondered. 他不知道它们已经鸣唱了多长时间。
- How long have they worked on the farm ? 他们在农场工作多久了?
- How long have you been on a diet? 你节食多长时间了?
- Alan was taken aback but then he became aware that the crickets had started. How long had they been singing? He wondered."Let go and see. 他吃了一惊,随后意识到蛐蛐儿的鸣叫声已经响起。他不知道它们已经鸣唱了多长时间。“让我们去看看吧。
- Alan was taken aback but then he became aware that the crickets had started. How long had they been singing? He wondered."Let go and see." www.xiaoquwang.com.英语. 他吃了一惊，随后意识到蛐蛐儿的鸣叫声已经响起。他不知道它们已经鸣唱了多长时间。“让我们去看看吧。”一.;起
- How long have they worked in Guangzhou? 他们在广州工作了多久了?
- How long have they been at war? 他们交战有多长时间了?
- How long have they live here by the end of last year? 到去年底为止他们住在这里多久了？
- How long had they lived here by the end of last year ? 到去年底为止他们住在这里多久了?
- How long had they lived here by the end of last year? 到去年底为止，他们住在这里多久了?
- How long have you been signing on? 你工作多久了?
- How long do you often spend on TV? 你通常花多长时间看电视？
- How long have you been working on this game? 你玩这个有游戏有多久了?（玩了几年了?几个月了）
- Have they been paid the money due to them? 他们是否已得到了应得的钱?
- How long has Alice been going with Adam? 艾丽斯和亚当交了多少时候朋友了？
- Maybe they were looking forward to a day of rest. Or have they taken the significance of National Day for granted? Are they "bored" because they have been to the parade and seen it umpteen times on TV? 他们或许盼望着一天的休息，或许国庆的意义对他们已是理所当然，或许曾经参加过游行、在电视上也看过不知多少回了，因此觉得“乏味”。
