你为什么没来参加昨天的会议？

___Why didn't you attend yesterday's meeting?

这就是为什么我总是提前十分钟到达会议地点。

That's ___why I always arrive ten minutes early for meetings.

哎呀，你怎么把咖啡洒在我的新裙子上了！

___Why did you spill coffee on my new dress!