1.It's necessary to be prepared for a job interv.__the answer ready will be of great help A.To have had B.Having had C.H
问题描述：
1.It's necessary to be prepared for a job interv.__the answer ready will be of great help A.To have had B.Having had C.Have D.Having 2.Eugene's never willing to alter any of his opinion.It's no use__with him Ato argueBarguingCarguedDhaving argued
答
D 动名词作主语,【__the answer ready】主语
B it's no use/no good doing sth 固定用法
allow 要用不定式是吗we don't. allow to smoke here这句话对吗错！allow doing sthWe don't allow smoking here.allow sb to do sth.We don't allow anyone to smoke here. 【注意：当心被动。 Anyone is not allowed to smoke here.】