一个很难的高中英语单选题----高手帮忙 In my opinion, life in the twenty-first century is much easier than _____ . A:that used to be B:it is used to C:it was used to D:it used to be 答案是D,但是我看不懂D项,it是代指life的对吗?重点说一下it used to be 后面是不是省略了东西?如果是完整的,我怎么也理解不了,怎么可能以be结尾呢?
it 指life,答案D相当于it was before,但这里没有before,用了used to be,已经表示过去,所以结尾不用was,用了(used to )be. 看一下例子吧: Life is much easier now than it was before. Life is much easier (in the twenty一first century) than it was (before). =Life is much easier (in the twenty一first century) than it used to be. =Life (in the twenty一first century)is much easier than it used to be.