The medical reform in that country proved to be _____ failure, but as we know, success often comes after _____ failure.
A. a; the B. a; / C. a; a D. /; /
The medical reform in that country proved to be _____ failure, but as we know, success often comes after _____ failure.
A. a; the B. a; / C. a; a D. /; /
B