Some time ago, I received this message:

Love the program so far.

However, confused with Lesson 5 answers. 

The charts in teacher’s worksheet do not match students’ and we are confused by answers for:

#1 Why not ablative and vocative too?

#2 Why just nominative singular?

#5 Why not vocative plural?

#9 Why not also nominative/vocative plural?

#12 Why not also vocative sing/plural, ablative sing, accusative plural, nominative plural?

#14 Why not also vocative plural?

#16 nominative plural, vocative sing/plu, accusative plural?

Thank you!

After an embarrassingly long delay, here is my reply: