阅读短文，选择正确的选项。

    I am a school student from Beijing. How do I do my homework on a computer? You can use your keyboard to write down your homework, then save the document on your computer, and print it out, or even email it.

    I am a doctor from Hong Kong. How can I send emails to my friends? You can send emails if you have got a computer and you can connect it to the Internet.

    I am a teacher from Shanghai. What can I do with the Internet? You can visit websites and download music and information for students. You can buy books online. You can get tickets and timetables and lots of other travel information. You can also email students and other teachers!