Modifying tests
The Knowledge Test in the Main Course and Express Courses consists of 10 or more questions randomly selected from the topic's question bank during each test. You can change the list of questions in the question bank for each topic of the Main Course and Express Courses. The more questions you add to the question bank, the more varied the tests will be. You can make important questions mandatory so they're displayed to users every time they take a Knowledge Test. Questions created by default can't be edited, but you can hide them and add your own.
Questions must be edited separately for each language in which the topic is available. If you change the Knowledge Test, the 
icon appears on the topic page (in the Main Course) or topic card (in Express Courses) with a tooltip indicating which language has been changed.