Up to now, the program ________ thousands of children who would otherwise have died.

   A. would save             B. saves

   C. had saved              D. has saved

Up to now, the program ________ thousands of children who would otherwise have died.

   A. would save             B. saves

   C. had saved              D. has saved

Up to now, the program ________ thousands of children who would otherwise have died.

   A. would save             B. saves

   C. had saved              D. has saved

Up to now, the program ________ thousands of children who would otherwise have died.

A. would save 　　 B. saves 　　　 C. had saved　 　　 D. has saved

Up to now, the program ______thousands of children who would otherwise have died.

A. would save　 　B. saves　 　　 C. had saved　 　　D. has saved