你用多长时间算出这道数学题的?

How long did it take you to ____________the maths problem?

写这部小说你用了多长时间？

  How long does ____ ____ you to write this novel?

(翻译)昨天你弹钢琴多长时间？

How long _______ you _______ the piano yesterday?

从广州开车到清远需要多长时间？

How long does               to drive from Guangzhou to Qingyuan?