Question

【题目】Up to now, the program __________ thousands of children who would otherwise have died.

A. would save B. saves

C. had saved D. has saved

Answer 1

【答案】D

【解析】句意：迄今为止,这个项目已经救了好几千名孩子。如果没有这个项目，这些孩子早就死了。up to now相当于by now,要与现在完成时连用。