Never before _______ in greater need of modern public transp
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 为什么选A,不选C?
本句为倒装句,正常语序为This city has never been in greater need of modern public transportation before than it is today.自己思考一下has never been...before能否换成was never been...before.相信你一定能明白为何选A而不选C了.