昨天下午放学的时候天正下着大雪.(snow)
when school was over yesterday afternoon.
There is a train in now. If you run, you'll just (赶上) it.
The job was so (枯燥) that the young man finally left.
Whoever breaks the law will be (惩罚).
(青少年) are supposed to help with housework to develop their independence.
Prepare yourself for everything (在前面) of time, and you will be successful.