Franz was expected to prepare a lesson on Participles to school that day.
Explanation:
The story "The Last Lesson" is narrated from the point of view of Franz. It is about the last lesson of French he received as France was occupied by German forces and teaching of French was to be discontinued.
The homework for the day was to read for Participles but contrary to the fears of Franz his teacher M. Hamel did not scold him for being late, neither did he ask him for homework as he wanted to make the most of the last class he would have with his students.
This sentence is representing a passive voice, well "Jacob ate" is telling us that we already did it. And "at the party" says that we was eating at the party, but he's not eating currently.
