As I was about to sit down, I heard the drawing-room door open and a light footfall made a floorboard creak.Then the door to the landing slammed shut.

• 当我坐下的时候，只听到客厅里开门的声音，地板上响起了一阵轻微的脚步声，随后楼梯平台的门重重地关上了。