—I'm sorry; I shouldn't have been so rude to you.—You ___ something not very nice to me, but that's OK.
Which do you enjoy ___ our weekend, fishing or watching TV?
Dr Brown has the habit of _____ the room when he is thinking about something troublesome.
There is a real possibility that these animals could be frightened, ____ a sudden loud noise.
____ others might have been satisfied, Dawson had higher ambitions.
Understanding the cultural habits of another nation, especially ___containing as many different subcultures as the united states, is very difficult.