Answer:
1. I am so excited to see my family for Christmas!
2. Where is an exciting place to visit?
3. Make sure to complete all your homework on time.
4. John asked, "When are we going on a vacation?"
5. Terry, Sam, and Jeremy went to the movies together.
6. Wow! What a wonderful event!
Explanation:
1. We added an exclamation mark because the sentence indicates that the speaker is excited. The exclamation mark is the punctuation used to indicate excitement.
2. The speaker is clearly asking for information - notice the use of "where" right at the beginning of the sentence and the verb "are" before the subject "we". When asking questions, we should use a question mark.
3. This sentence offers either a suggestion or a command. There is no indication that the speaker's tone was too authoritative, so a period is good enough.
4. At first, we may think this is an indirect speech that requires only a period. However, the verb "are" is placed before the subject "we", which indicates a direct question. Thus, a question mark should be placed after it. Also, to separate the question from the rest of the sentence, we need to place quotation marks around the question.
5. We must use commas to separate each name listed in the sentence as well as a period to finalize it.
6. This sentence begins with an interjection that expresses surprise or amazement. That interjection already requires an exclamation mark. We can assume the rest of the sentence is said in the same exclamatory tone, so another exclamation mark should be used at the end.