找考题网-背景图
单项选择题

A.forbidden B.confidential C.incredible D.strictThe ___……

The _____ files,which were sealed under the 75-year rule but have been released early,show that senior officers tried to convince the then home secretary,“Rab”Butler,that there was not a racial element to the rioting.

A.forbidden
B.confidential
C.incredible
D.strict