Uptonow,theprogram________thousandsofchildrenwhowouldotherwisehavedied.
A.wouldsave
B.saves
C.hadsaved
D.hassaved
正确答案:D本题考查动词时态的用法。句意应为“截止到现在,这个项目已经挽救了成千上万的本来会死去的孩子的生命。”uptonow是现在完成时态的标志,所以空格处使用现在完成时态。

Uptonow,theprogram________thousandsofchildrenwhowouldotherwisehavedied.
A.wouldsave
B.saves
C.hadsaved
D.hassaved
正确答案:D