- Although he was always the “background” briefer on foreign policy issues, he could never be identified as anything other than “a White House official” or “a high Administration source”.
- Although he was always the "background" briefer on foreign policy issues, he could never by identified as anything other than "a White House official" or "a high Administration source".
- The news comes from a reliable source.
- My wages are the principal source of my income.
- I hate the prodigal administration.
- Solar energy is a new kind of source of energy.