Adding -s is the most common. for example: books, cups, pencils, etc. -es might have been the one that confused you, but that isn't a super common ending for plurals--instead, a more common one would be "-ies" which is when you drop the y (berry becomes berries, for example).
Answer:
no I wouldn't say so everyone griefs in different ways with the situation
Who said I am waiting for you? Which human could have possibly said that, not sure why I am writing this but have a good day.
That we should dedicate ourselves to their unfinished mission and we shall honour what they have done for this country.
D is correct.
Hope this helps and please give brainliest!