Test your knowledge of proofreading

Each of the following sentences has at least one copy error. To see what we marked, click on the "answer" button. We’ll also provide an explanation of our edits.

• Cincinnati, OH is a good city, and its right across the Ohio River from Covington, Ken.

• Joe and his wife Joan have three girls. Their daughter, Melissa, is starting college this year.

• The play is second rate and I wouldn’t recommend it to anyone.

• Dec., 1980 was a bad month for the company because Winter took a toll on operations in the north.