Question

A comma may be useful after introductory phrases because __________.

Answer 1

introductory phrases do not have both a subject and a verb



it indicates that there are at least five words in the phrase



it avoids confusion and helps the flow of the sentence



all sentences must have at least two punctuation marks

Answer 2

C?

Answer 3

http://www.grammarly.com/handbook/punctuation/comma/11/commas-after-introductory-phrases/

Answer 4

C makes sense, what do you think about C ? @kels200105

Answer 5

I agree. :)

Answer 6

Huzzah !