I get it!
It´s only a question of practise. Look bellow where says options and click on poll as always.
Introduce the question for the poll, then Write each vote options in a line, but in the same space. For example;
Very good
good
not bad
bad
You can add up to 10 lines, that´s to say ten options.
The following space is to select the days you want the poll was active. In blank you want it never ends. (delete number 0 and write the days or let it in blank for ever)
And finally, add your vote.
This is how I jast have done.
I´m sure someone could explain to you better, but...
The next space is for selecting the times you want a user vote (usually, only one)