About ______ blacks have been killed in the past three years.

A．in the U. S. S. R. since August 1991
B．in the country since 1991
C．in the city since the disintegration of the Soviet Union in August 1991
D．in the city since 1991

A．deputy of Commonwealth television station
B．his spokesman
C．the head of his administration
D; a parliamentary leader