宋先生加入排球俱乐部已经三年了.
Mr.Song for three years.
我们永远不要拿不属于我们的东西.
We should never take anything that doesn't us.
我们应该思考如何把中国文化介绍给全世界.
We should think about how to Chinese culture the world.
That is his old house. He lived there for twenty years. (合并为一句)
That is his old house he lived for twenty hours.
His mother will come back ____. (对划线部分提问)
will his mother come back?
Chinese doctors saved many patients all over the world. (改为被动语态)
Many patients all over the world by Chinese doctors.