1. Use one list per paragraph or even sentence. Check what works best with different examples.
2. Find a solution for reading the entire task coherently using a readspeaker.
3. Remove list items on check/solutions mode so you only have to go through the relevant items.
Currently, there is one huge list for the whole task. Splitting this up into smaller list, e.g. one list for each paragraph (or similar) would make it a lot easier to navigate.
To create an overall better accessible experience here we could look to how CKEditor is doing their words selection. - Separate issue?