Never before_ in greater need of modern public transport than it is today.A.has this city beenB.this city has been C.was this city D.this city was 为什么?
问题描述：
Never before_ in greater need of modern public transport than it is today.
A.has this city been
B.this city has been
C.was this city
D.this city was
为什么?
答
楼上说的不全对,
因为never, only, seldom等一系列否定词开头的句子后面要不完全倒装
而且句中有一个before标志着要用完成时
故选A
答
never before置前用倒装 ,其次never before是个使用现在完成时的一个标志.
这个城市至今为止都没有现在这样大量的需要现代公共交通.
从过去到现在为止的这个过程中,用完成时.