Surfer sur Internet

I usually use the internet for work, for (to) learn languages and for has a career (my work??). Moreover I send some e-mail and I speak with my friends by the (on) facebook.When I have some dubt questions about something, like an address, I search it   (for answers) on the net. I like to surf the net and discover news website.

Pretty good.

 I use the internet for working and leaning foreign languages and in order to have a career. Moreover, I send some e-mails and speak with my friend on Facebook. When I have some doubt about something, such as a website, I search it on the net. I like surfing on the internet and discover new websites. 

Be careful with verb forms following prepositions like for working and learning, Ok? In addition, address is for mail not for the Internet. Finally, your biggest but not very worrying mistake was writing an adjective in plural. You know adjectives haven't got nor number or gender form, don't you? All in all, your work was very good! Keep up the good work!