问题
选择题
Never before in our country_____.
A．has such a thing happened
B．such a thing has happened
C．has so a thing has happened
D．so a thing has happened
答案
答案：A
考查倒装句和so,such的辨析。当never,little hardly,scarely等否定意义的副词置于句首句子要倒装。So+adj/av+n.而such+a(n)+adj.+n