The manager was very angry, for he had sent his business partner two thousand machines yesterday, half of _________ unqualified.
My camera can be _____ to take pictures in cloudy or sunny conditions.
Mr. Smith gradually _____ a knowledge of the subject.
His new appointment takes _____ from the beginning of next month.
It was a great _____ for him to be pleasant to people he didn't like.
He has impressed his employers considerably and _____ he is soon to be promoted.