Questões de Concurso Sobre preposições | prepositions em inglês

Regarding the use of prepositions, analyze the following sentences

I - The project is due _____ Friday, so we need to finish it before the deadline.

II - The meeting will start ____ 10:00 AM, so make sure you are on time.

III - We often have dinner ____ 7 PM, especially on weekends.

IV - The gym is closed _____ Mondays, so we should find another day to work out.

V - I’ll finish the report _____ the end of the day, as promised.

Select the option that correctly fills in the blanks.