Similar in principle to the enclosing of parenthetic expressions between commas is the setting off by commas of phrases or dependent clauses preceding or following the main clause of a sentence.
About 100 of our mentors work every week with teen girls online and we do a lot of special events and readings and a whole college program to help all of our girls go to college.
The owner of the shop says that the clothing, which includes suits and ties, is intended for people who work in high-risk locations, such as jewellery stores.
We came 7th out of 101 universities in last year's research assessment, carried out by a government body and did particularly well in your particular subjects, engineering and science.
Finally, there's the innermost layer of the heart called the endocardium, which is made of a relatively thin layer of endothelium which is the same layer of cells that line the blood vessels.