英语翻译~~~

我把图书馆的书给丢了，我必须赔偿
I have lost library book,I must pay for it.
你能查出是谁拿了它了吗?
Can you search out who took it?
我们应该相互学习,相互帮助.
We should learn each other and help each other.
我们一完成这项工作就回家.
We will go back home as soon as we finish this job.
他说他们直到明天才有空儿.
They said that they would be free till tomorrow.
房间里除了一架钢琴外什么也没有.
There's nothing except a piano in the room.
我们很久没有见面了.你去哪了?
We haven't seen for a long time.Where have you gone?
在美国,英语被作为第一语言来说.
In USA,English is used as first language.
每天都有很多人参观长城.
Everyday there are many people visit the Great Wall.
我认为今天下午我们没有别的事情要做.
I think we have nothing else to do this afternoon.
世界上讲中文的人最多.
People who speak Chinese are the most in the world.
中华人民共和国是1949年建立的.
People's Republic of China(PRC) was established in 1949.
去年我家乡又建起了一所大医院.
A big hospital was built up in my hometown yesterday.
应该教这个男孩如