In this section, you will hear five short news items. After
each item, which will be read only once, there will be a pause. During the
pause, read the question and the three choices marked A, B and C, and decide
which is the best answer. Then mark the corresponding letter on the answer
sheet with a single line through the centre.
Nigeria returned to the Commonwealth after ______.
A. she had sentenced minority rights activists to death B. the military had resumed control of the country C. power had been handed over to an elected president