Adding Mock test Features in existing WordPress website.

I have a WordPress [login to view URL] about a foreign language proficiency test (like TOEFL). The site provides previous paers and answersheets (pdf), study material etc. I want to add a feature (pages) to my existing site which could allow students to solve the previous/sample papers on the site itself instead of just downloading the pdf. All the questions are multiple choice (4 options with 1 correct answer). It would be kind of a mock test feature. Students will mark the option (radio button) And after the test it will show whether the answer is correct or incorrect and will also show the correct answer. it will show the complete score with an option of e-mailing the score report. It would also be great if it could have a feature of saving the history of registered members so that they can know what they have covered and later resume from there. I will provide you one paper set with options (the paper is in a foreign language but it won't matter because you just have to copy paste the questions and answer options. You can just add some questions and let me know the way how I can add more questions and answers as needed. There are some quiz plugins for this but I don't want that because adding questions is a pain with them. If you don't want wordpress and can do it in a better way with some other method, I can create a subdomain site where you can add this webpage and give a menu link to it in the main site. We can discuss further details later. Thank you.