Did he put shoes under his bed very loudly when you were listening to the music?
问题描述：
Did he put shoes under his bed very loudly when you were listening to the music?
什么时态 是过去进行时吗
did+when+be doing 和 be doing+when+did 的用法和区别
答
第一个when翻译成：当……时
第二个when翻译成：正在这时突然