I forgot to turn off the light. Can you go back and close it?
51、你为什么学英语？
Why do you study English?
52、他工作越努力，就感到越幸福。
The harder he works, the happier he feels.
53、因为这是我们的第一节课，所以我并不知道你们所有人的名字。
Because this is our first class, I don't know the names of all of you.
54、你怎么不做某事呢？
Why don't you do something?
55、请把地图给我看看。
Please show me the map.
56、他不但是个好医生而且是个好爸爸。
He is not only a good doctor, but also a good father.
57、在我看来，他从来没有笑过。
In my opinion, he never laughed.
58、他们都喜欢在中国生活和工作。
They all like to live and work in China.
59、我已经写完了故事。
I've finished the story.
60、是的，我认为是。
Yes, I think so.
