A conjunction is a word that connects clauses or sentences. Examples include 'for', 'and', 'nor', 'but', 'or', 'yet', 'so' (FANBOYS).

You use a comma with conjunctions only when connecting two independent clauses.

A proper noun is a specific name for a particular person, place, or organization, and it is always capitalized. Example: 'Lake Michigan'.

It should be written as 'Hi Dad,' because 'Dad' is used as a proper noun in this context.

The correct way is: 'The movie theater was packed full of people excited to see the new Star Wars movie, so I decided to go see Transformers instead.'

The purpose of revising a sentence is to improve clarity, coherence, and correctness.

An independent clause is a group of words that can stand alone as a sentence because it has a subject and a verb.

A compound sentence is made up of two or more independent clauses joined by a conjunction.

A common noun is a general name for a person, place, or thing (e.g., 'city'), while a proper noun is a specific name (e.g., 'New York'). Proper nouns are capitalized.

A comma is used to indicate a pause between parts of a sentence, separate items in a list, or clarify meaning.