1) This summer I am going to the Empire State Building, it is located in New York.
2) Last summer, for vacation I went to Dubai and saw the Burj Khalifa.
Answer:
Use commas after introductory a) clauses, b) phrases, or c) words that come before the main clause. a. Common starter words for introductory clauses that should be followed by a comma include after, although, as, because, if, since, when, while. While I was eating, the cat scratched at the door.
Answer:
A. David called this morning and told me to look for a letter in the mail tomorrow.
Explanation: