In each of the following sentences, there is one word underlined and one gap. From the list of words lettered A - D, choose the word that is most nearly opposite in meaning to the underlined word and that will, at the same time, correctly fill the gap in the sentences.
He was promoted for his efficiency while his colleague was demoted for..........
Okon's business is flourishing while his father's is...........
You should be ......so as not to be caught unawares.
The school authorities expected the contributions to be ..............rather than compulsory.
The manager who was sacked last month has been .............
