The ------question is much more difficult than this one.

问题描述:

The ------question is much more difficult than this one.
A.ninth B.twentith C.fourtieth D.forth
究竟答案会是哪个?又有谁会讲出原因?期待

选A ninth(第九)
因为只有A 写对了.其他都写错.更正如下:
twentith --- twentieth
fourtieth -- fortieth
forth -- fourth