Someofthemembersdemandedtoknowwhytheyhadbeenkept

问题详情：

 Some of the members demanded to know why they had been kept ______ the true facts until they reached the present critical stage.  

  A. in ignorance of    B. in the light of   C. in honor of     D. in view of

【回答】

A

知识点：介词

题型：选择题