Punctuation marks are used to organize sentences and indicate meaning. Periods mark the end of sentences, follow initials and abbreviations. Commas separate items in lists and parts of sentences or indicate pauses. Question marks mark direct questions. Exclamation points are used after shouts, orders, or strong feelings are expressed.

1. Period .Marks the end of a sentence.

2. I will go to the zoo.

3. Follows most initials.

4. John F. Kennedy