One day, Tom tells his friends, "I'm going to spend my holidays in Beijing, but I have a problem. I can't speak Chinese, so I' m going to take evening classes and then have Chinese lessons there for a month." Soon his holidays come and he goes to China happily. After he comes back, his friends ask him, "Did you have any trouble with your Chinese when you are in Beijing, Tom?" "No, I didn't," answers Tom. "But the Chinese did!"