Hi, I found a page with exercises. It's rather easy, but for beginners I think it's good. The more you can check there your answers.
http://www.pavei.cappelen.no
If you´re interested in learning Norwegian, you can sign up for Norword lessons via the Norskklassen group. There are over 1000 members there, including Norwegians and professors of Norwegian. I don´t have the website on hand, but just type in Norskklassen in the google search engine, and it will come up.
I'm also registered to Norword but be aware that their pronunciation guides primarily use English sounds, so better listen to the correct pronunciation somewhere else.