Assignment pages may malfunction in case if pop-ups are blocked in your browser. That is why we recommend to check if pop-ups are allowed in your browser before you proceed to your assignment.
To allow pop-ups, copy an appropriate link into address bar of your browser and hit Enter:
Google Chrome – chrome://settings/content/popups
Yandex.Browser – browser://settings/content
Microsoft Edge – edge://settings/content/popups
Select the "Sites can send pop-ups and use redirects" option as in the picture below:
After that, you can proceed to your assignment and start your exam.