PUNCTUATION WOES
Look at this video and see how ommitting a comma can lead to confusion

 http://video.about.com/esl/Quick-Tip--What-is-an-Oxford-Comma-.htm
This one that one of our students wrote, is a bit funny

My husband who lives in Australia is a successful business man

Did this lady mean that she had more than one husband ? Was she bigamous ?
Certainly not  The student should have written

My husband, who lives in Australia, is a successful business man

Now we know she had only one husband and she happened to include some additional information about him , that was all .
BYE

Alejandro Altimir