I ate ____sandwich while I was waiting for ____20:08 train.
Jack _____ yet, otherwise he would have telephoned me.
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.