DOCTORS _____ A CURE TO AIDS YET.A. HAVE FOUND B. FOUND C. HAVEN'T...
1. Doctors _____ a cure to AIDS yet.
A. have found
B. found
C. haven't found
D. hasn't found
1. Doctors _____ a cure to AIDS yet.
A. have found
B. found
C. haven't found
D. hasn't found