Lost Underground is a story about four school children who went on a trip to some caves. These caves were very large and people could go into them only with a guide. However, four children decided to explore on their own. They went in the caves with a group, but left the group and walked down the tunnel. They thought it would be fun to explore the cave alone.

    Soon they came to a hole in the wall. They climbed through the hole into another part of the cave. Then they decided to turn back, but they could not remember the way. They were lost in the caves. When the guide led the other children out of the caves, he counted them. He discovered that there were four children missing. He had to go back into the caves to try to find the missing children.

    The children who were lost moved deeper into the caves. The deeper they went, the more lost they became. They were frightened. They started shouting for help, but the guide didn't hear them. How dangerous!

    Soon they came to an underground river. They guessed that the river must flow out of the caves. The water was very cold and deep, but the children kept on swimming. For a long time, they swam in darkness, then they saw a light ahead of them. The river was flowing out of the caves into a big river and the children were able to leave the caves. They climbed out of the river onto the riverbank. They saw the bus with the other children in the distance.

    I had great experiences in Wuzhen. It left me a great impression (印象) during my recent four-day stay there.

    Free Wi-Fi in public areas is now available (可得到的) there. Such service (服务) is common in cities, but I didn't imagine there was such service in a small town like Wuzhen, When I arrived at Wuzhen that evening, I was very surprised! I couldn't to do two things: connect to Wi-Fi and go around the town. Where there's the Internet, there is a way.

    I found a bicycle station along the street. A notice guided me on how to get a bike using my smart phone. It offered me a two-hour free ride and I enjoyed it a lot. The locals have enjoyed the free bike service since last year.

    Later, locals told me hundreds of such bicycles became available at the beginning of last year. Hundreds of new-energy vehicles (交通工具) can fee used if you pay a little money. Again, you need a smart phone to make use of the service.

    I rode across streets and roads, past many places. I found the Internet was used everywhere in the town.

    I've interviewed many officials in other areas of China. And I often wanted to remain connected with them through WeChat. However, many of them would just excuse themselves, saying they don't use the social media as they have too many things to do every day. But most of the Wuzhen's officials said, "Nowadays, many things are completed with the Internet, and we're sure that Internet will become more and more important. We can reach further by using it."

    An English traveller found himself in Norway with only enough money to buy the ticket for his journey back home. As he knew that it would take him only two days to get to England, he decided that he could easily spend the time without food. So he bought a ticket and got on the ship. The man closed his ears to the sound of the lunch bell. When dinner time came, he didn't go to the dining room, saying that he was not feeling very well.

    The next morning, he still didn't have breakfast and at lunch time he again stayed in his room. But at dinner time he was so hungry that he went to the dining room and ate everything the waiter put in front of him. He got ready for the quarrel(争吵).

     “Bring me the bill,” he said. “The bill, sir?” said the waiter in surprise. “There isn't any bill. On our ship meals are included(包括)in the money for the ticket,'' said the waiter.