完形填空。

Mr Black works in a hospital. He is a great 1 . He comes from Canada. He likes 2  very much. He hopes to travel 3  the world. 

Mr Black also likes traditional Chinese medicine（中医）very much. He often says Chinese culture is very 4 , so he is learning Chinese to work in China. 

He 5 Chinese very hard, and he has Chinese lessons in an evening 6 . He has a lot of friends in China and they often 7 him learn Chinese. He likes to talk with 8 . Now, he can 9 Chinese well and he doesn't have any trouble（困难）with his Chinese. He plans to come to work in China 10 July.