Mastering Punctuation

To hide mistakes

To make writing look longer

To confuse readers

To emphasize certain information (correct)

Never use a full stop

Use a full stop only when the abbreviation is more than one word

Always use a full stop

Use a full stop only when the abbreviation is one word (correct)

To indicate a question

To separate words or phrases in a list (correct)

To separate paragraphs

To make the sentence longer