He found his house__________ __________when he arrived home after work.

　　3．他们一直跑到安全的距离才停下来。

　　They didn't stop running until they were__________ __________ __________ __________．

　　4．你不必解释！我受够你了！

　　There is no need to explain! I__________ __________ __________ __________ __________！

　　5．为了不吵醒婴儿，他们像老鼠一样悄无声息地离开了房间。

　　In order not to wake the baby up，they left the room，_________ _________ _________ _________ _________.

　　6．听起来好像有人在敲门，去看看是谁。

　　It__________ __________ __________somebody is knocking at the door.Go and see who it is.

　　7．一旦她下定决心就没有什么可以说服她改变主意。

　　Nothing can__________ __________ __________change her mind once it is made up.

　　8．中国的长城是迄今为止所建造的最长的人造建筑。

　　The Great Wall of China is the longest man­made structure__________ __________．

　　9．购物时，我们看到她在给孩子们买书。

When__________ __________，we saw her buying books for the