"You have a typo in your answer" text positioning
It covers up my answer so I can't actually see the word I've spelt wrong or how I've spelt it.
ETA: also, sometimes with multiple choice answers, the sentences are so long they cover up part of the bottom bar with the comments section.
This is a little bit extreme, but a possible solution is to edit the page's HTML to hide the tooltip.
To do this:
Right click on the black rounded circle (the tooltip that says "you have a typo"), and click "Inspect Element" (the procedure should be the same in most browsers, but if you can't see the option Google "Inspect Element (insert your browser's name)").
Then, in the window that pops up at the bottom of your screen, search for the text that looks something like this "div id="blame-1" (...extra stuff may be here...) style="top: -33px; left: 48.5469px;display: block;"".
Double click the word "block" (at the end; this should work in most browsers, but if not Google "edit element style (insert browser name again) using developer tools" to find out how to edit the text from step 2.
Change the word "block", and only the word "block (i.e. don't touch any semi colons or quotation marks around it) to "none". The tooltip should disappear.
Hope this helps; I know it's quite convoluted but it's really a rather simple and often useful process for hiding things on websites (I also use it frequently for hiding annoying popups, though the method is slightly different). And don't worry, this won't permanently affect Duolingo, the change only lasts as long as the page does (i.e. as soon as you refresh the page, it reverts back to how it was)
You should be able to move that window so you can see your original answer, at least that is what ai do.