单项选择题
Questions 10 to 12 are based on the conversation you have just heard.
A．They hate exams. B． The all plan to study in Cambridge. C． They are all adults. D．They are going to work in companies.
A．It was invented by a group of language experts in the year of 1887. B．It is a language that has its origin in ancient Polish. C．It was created to promote economic globalization. D．It is a tool of communication among speakers of different languages.