The Period Use a period to end a statement, mild command, or indirect question and after most abbreviations. He arrived on time. Sit up straight.
Students sometimes wonder whether their teachers read the papers they write.
Mr. Mrs. lb. a.m. The Question Mark Use a question mark after a direct question. The Exclamation Point Use an exclamation point after an emphatic statement, command, or interjection. The Comma Use the comma to separate items in a series. My address is 511 Sand Lane, St. Joseph, Missouri.