题目内容
15. Up to now,the programme ( save) thousands of children who would otherwise have died.
15. has saved up to now常与现在完成时搭配,意为"迄今为止"。
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题目内容
15. Up to now,the programme ( save) thousands of children who would otherwise have died.
15. has saved up to now常与现在完成时搭配,意为"迄今为止"。