Let me tell you a story. A good friend of小题1:   lives with six hundred animals on an island. Ever since he left school, he has traveled all over the world 小题2:  for animals for his own zoo. He writes 小题3:  about his travels, and about his wonderful animals. The money from his books helps him to 小题4:   for all the animal food. My friend told me that there is not enough water on the island, 小题5:   there is a lot all around it. When he was looking for water last week, he 小题6:   oil. He needs 小题7:  for his travels and for his zoo, and a little oil would buy enough water for a long time. But he knows that 小题8:   he tells anybody else about it, it will be the end of his zoo and his life’s work. So I think he 小题9:   tell anybody except you and me about what he found — because oil and water can’t be put together. Oil may bring greater trouble 小题10:   his animals than not having enough water. Do you think so?