| A | B | 
| commas | separate items in a list | 
| use a period | to end a statement | 
| explanation point | ends a statement showing show excitement | 
| question mark | end statements asking something | 
| use a comma | between a city and state | 
| a comma | separates a date's day and year | 
| periods | are used after abbreviations | 
| apostrophes | in contractions show where letters are missing | 
| an apostrophe | shows ownership | 
| a comma sets off | a name when addressing someone | 
| quotation marks | at either end of something said aloud | 
| periods follow | each initial in a name | 
| a comma follows the | closing of a letter | 
| use a comma | after your greeting in a letter | 
| decimal point | looks like a period when writing amounts of money |