I entertained a foreign coworker last week. He is from Argentina. He spoke English quickly. I hardly caught his words, but he could understand what I said. He said I speak English well. I think I have make some progress. He has been to China for many times. He knows much about China. He like Chinese food and eat everything. I entertained him in a tradinal restaurant nearby the Confucius Shrine. The manu is special. We can't find the dishes in other city.