After standing in the rain for nearly half an hour _____ Dawn decided she was not going to wait on Mike any longer.
Which of the following punctuation marks would best fill in the blank space?
- A Colon
- No punctuation is necessary
- A Comma
- A Semicolon
Answer: A Comma is the correct answer. In this sentence, the word “after” is a common starter word for the introductory clause and should be followed by a comma. A clause is a group of words that contain both a subject and a predicate and help to form a sentence. Other common starter words that require a comma after the introductory clause include when, while, although, and since.