The Errors of Editing

Why did our grade 7 students have so much trouble with the NYS ELA editing paragraph?

• What are the common editing errors?

using quotation marks
fixing a fragment - end punctuation - capital letter/new sentence
correcting a run on sentence
knowing the difference between an adjective and an adverb
using a consistent verb tense
using commas correctly
using capital letters correctly

So, what do you think?