Answer:
Use a pair of commas in the middle of a sentence to set off clauses, phrases, and words that are not essential to the meaning of the sentence. Use one comma before to indicate the beginning of the pause and one at the end to indicate the end of the pause. 9 December 7, 1941, will never be forgotten. And lastly use commas when there is a list of 3 or more things.(example) I want you to pick up eggs, biscuits, sausages, and pancakes.
Europe is an existing place to visit, it is of historical landmarks.
Visit Europe it is an existing place to full of historical landmarks.
