It took him (two hour) to play the violin.（就括号内提问）
问题描述：
It took him (two hour) to play the violin.（就括号内提问）
句式：_______ _______ _______ it _______ him to play the violin
答
【 How long did 】it【take 】him to play the violin
不明白的再问哟,请及时采纳,多谢!