Quotation ...

1. …is only used to communicate the exact expression of the original. In any other case, use paraphrases.

2. …is highlighted typographically: e.g. by indentation / italics, or, with shorter quotes, by quotation marks. (Follow the guidelines of your profs.)

3. …is unaltered. Additions, omissions, highlighting are communicated; errors are copied as in the original.

3 facts and 3 questions while the pasta is cooking

Example: Original

Which quotation is correct?

(Details depend on the requirements of your profs.)