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 years.
His mother will come back in five days. （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.
David can hardly speak Chinese. （改为反意疑问句）
David can hardly speak Chinese, _________ _________?
Shanghai is the biggest city in China.（改为同义句）
Shanghai is _________ _________ any other city in China.
