The chairman thought _____ necessary to invite Professor Smith to speak at the meeting.
Those who suffer from headache will find they get _______from this medicine.
To tell you _____ truth, going on a trip into ______ space is what I want to do most.
Coming into the room, I found them ______ at the table, _______ chess.
The song writer and music composer ________ to show up at the press conference next week.
There was an _________ expression on her face when she came in.