Question

unit exam: editing and proofreading• separate an introductory dependent clausefrom an independent clause with a comma toform a complex sentence4) to set off a nonrestrictive clause in the middle ofa sentence• use a comma before and after anonrestrictive clause in a sentence5) to directly address someone• place a comma after directly addressingsomeone6) to introduce a direct quote• place the comma outside of the quotationmarks when introducing a direct quote7) to separate days and dates• separate days of the week from months ofthe year with a comma• separate months and days from the yearwith a commawhich of the following sentences is punctuated correctly?david i think you need to brush your teeth.david, i think you need to brush your teeth.david i, think you need to brush your teeth.

Explanation:

The sentence directly addresses "David", so according to the comma rule for direct address, a comma must be placed after the name being addressed to separate it from the rest of the sentence. The other options either omit the comma entirely or place it incorrectly.

Answer:

David, I think you need to brush your teeth.