As regards spelling in English, fill in the gaps in the sentences below by choosing the correct spelling between the options in parenthesis.

I. Lucy ________ (fetchs / fetches) Ana from school on Mondays.

Il. This software counts the number of ________ (occurrences / occurences / ocurrences) of certain words in the text.

III. Do you want your ______ (receipt / reciept)?

IV. According to specialists, a huge percentage of the population is ________ (iliterated / illiterate / iliterate).

In the order presented, the gaps are correctly and respectively filled by: