The Internet is a big place．No one has enough time to find everything on the Internet．Yahoo gives us a lot of help．

Two Stanford University students, Jerry Yang and David Filo started it in 1994．They made a list of their favorite webpages．When their list got bigger, they make a database (数据库) to keep all the information．They let everyone use it for free．Soon, thousands of people were using it．

Then they made a new kind of software．It could store much information, so people can find information by using it．If you look for "animals", it will give you a list of webpages with the word．

Yahoo became a public company in 1996．As the company grew, Yang and Filo went on working hard．They put more uses in the software, such as shopping, free e-mails, etc．They started Yahoo in many different countries and in different languages．

Yahoo is famous on the Internet．More and more people like to use it to find information．

1．When Yang and Filo make a list of their favorite webpages, they                ．

A．made people pay for using it                  B．were still university students

C．knew it wasn't useful                        D．were high school students

2．After the company became bigger, Yang and Filo               ．

A．became lazy                                           B．worked less

C．kept working hard                                   D．stopped working

3．Why people can find information by using the new kind of software?

4．Can people find Yahoo in many different countries and in different languages?

5．When did Yahoo become a public company?