Other Punctuation Marks

The Period (.)

The period is used to end most sentences except direct questions and genuine exclamations.

Examples:

Melissa is allergic to all mosquitoes.

Go feed the cat.

I wonder when it will start raining.

The period is also used at the end of most abbreviations. If a sentence ends with a period marking an abbreviation, do not add a second period. A period is not used in US Postal Service abbreviations for states: CA, TX, NY.

Examples:

Dr. Hardin

Mr. and Mrs. Cheatham

M.A. Degree

etc.

i.e.

a.m. (or AM)

p.m. (or PM)