Working hard is not a _______ of great success, but it is among the essential requirements.
I told Sally how to get here, but perhaps I ____ for her.
Michael ______ be a policeman, for he is much too short.
Unluckily, when I dropped in , Dr. Smith ____, so we only had time for a few words.
—We didn’t find Smith attending the lecture. —No one ___ him about ___ a lecture the following day.
—The former president of Iraq was caught at last. —Really? Where ______________ himself?