--Is your uncle a pilot? --Yes. He _________ four days a week and has been to many places.
No one can avoid ______ by advertising; it is everywhere.
With all the audience ________, the speech began.
—Ken, why do you look so tired? —I _______ myself to the climate since I came here.
Some passers-by witnessed the car accident____ five passengers were killed, a baby included.
The girl got nothing in ______ for her kindness, which made her very sad.