1. Original: Registration for summer school will open on Thursday, March 7, 2016 and will be available on the internet at www.mjsd.k12.wi.us.

Revision: Registration for summer school will open on Thursday, March 7, 2016, and will be available on the internet at www.mjsd.k12.wi.us.

Type of comma error(s) corrected: CmDate

2. Original: Although the project was due on March 1 the instructor accepted the paper a day late with a ten percent penalty.

Revision: Although the project was due on March 1, the instructor accepted the paper a day late with a ten percent penalty.

Type of comma error(s) corrected: CmIntr

3. Original: A new instructor was originally hired to teach accounting and was later asked to teach personal finance as well.

Revision: A new instructor was originally hired to teach accounting and was later asked to teach personal finance as well.

Type of comma error(s) corrected: Correct

4. Original: Because it is Jon Bon Jovi's birthdate March 2 1962 is a special date in music history.

Revision: Because it is Jon Bon Jovi's birthdate, March 2, 1962, is a special date in music history.

Type of comma error(s) corrected: CmIntr, CmDate

5. Original: I am having a really busy semester because I am taking Math English Geology and Accounting.

Revision: I am having a really busy semester because I am taking Math, English, Geology, and Accounting.

Type of comma error(s) corrected: CmSer

6. Original: After studying for three hours she decided to take a break and have a snack.

Revision: After studying for three hours, she decided to take a break and have a snack. 

Type of comma error(s) corrected: CmIntr

7. Original: Brett Rodgers Incorporated planned to move its production from Milwaukee Wisconsin to Stillwater Oklahoma.

Revision: Brett Rodgers Incorporated planned to move its production from Milwaukee, Wisconsin, to Stillwater,Oklahoma.

Type of comma error(s) corrected: CmDate