never before 的疑问

题目

never before 的疑问
1.Never before has the city been in greater need of modern public transport than it is today.
2.Never before has our country been as powerful as it is today.
3.never before have so many people in the united states been out of work as today.
这三个句子都是表示以前和现在的比较,有NEVER 引起的倒装.可是有三点疑问：第一句可否在than 后加what?,同时可否在第二句as加上what?.还有就是第三句可否把as today 改成as it is today?

答案

writing good English sentence...千万不要 随便改成 or 多加一些
English sentence...注重 简化 & 精简