Answer: The World Trade Center Towers fell on September
11.2001
Explanation: Please don't simply copy and paste your questions; sometimes the formatting goes all wacko, like it did here. Also, double-check that ALL the information pertaining to the question is included; I'm not entirely sure that this answer is correct, due to the fact that there is no "line" to even read. :)
Answer:
commas are needed before coordinating conjunctions, after dependent clauses
It would be
To develop Characters by displaying their interactions.
Answer: The girl walked to the park
Explanation: verb is walked
It takes the place of a noun