题目内容：

How the old people wish that they ____young once more为什么不能用could become而用were.
But for water,it
____impossible to live in the earth为什么用were 而不用would be

优质解答

were表示与现在事实相反的虚拟,所以用were 而could become表示与将来事实相反的虚拟.如I wish I were rich now.I wish I could fly to the moon someday in the future.第一个句子中表示这些老人多么希望他们现在又...