Dormir and morir are irregular in El Pretérito Indefinido but both follow the same pattern replacing the -o- with a -u- in the 3rd person singular and plural (ella/ él/ usted and ellas/ ellos/ ustedes):
|él / ella / Ud.||durmió|
|ellos / ellas / Uds.||durmieron|
Read and listen to these examples:
Examples and resources
Q&A Forum 1 question, 5 answers
Why don´t you give more examples and also do a proper test on this segment, I can´t see the point of this little kwiz bot things.
How do I create multiple notebooks?
If you go to "notebooks" in the top menu you'll a button called "add a new notebook". If you have more than one, then the "add to notebook" buttons work differently: they open a little window that lets you choose which notebooks to add the lesson to. You can also then create new notebooks on the fly there, which is very handy.