Language arts review Crossword

This letter goes at the beginning of proper nouns.
I go at the end of a sentence
I describe a noun.
I can be linking, action or helping.
I could be either a person, thing, animal, place, or idea
This type of sentence tells you what to do.
I go at the end of a question
Examples of this part of speech are quickly, slowly, etc.
I separate words in a series
Words with similar meaning
Words with the opposite meaning
Step of the writing process when you double check for mistakes.
This type of sentence has an exclamation mark at the end
Punctuation sign used to report the exact words someone said.