Capitalization and Punctuation: Period
A complete sentence which makes a statement ends with a period.Capitalization and Punctuation: Question MarkIt's your turn now. Take a deep breath and blow.Most abbreviations end with a period.Dr. Williams will meet you at the Oak St. office.
A question ends with a question mark.Capitalization and Punctuation: Exclamation PointHave you been eating again? Does the coach know?
A statement expressing unusual emphasis or great excitement may end with an exclamation point.You've been eating again! I'm telling the coach!This mark is not used often. Usually a writer can express emphasis through the choice of words, using information to support an idea rather than relying on an exclamation point to create a general sense of high emotion. In writing, exclamation points are used primarily for conveying the tone of informal conversations.