抛砖。
(A) who still harbored the illusion that E-mail exchanges are private, a watchdog group recently uncovered a trick for enabling an interloper to rig an E-mail message so that this person will be privy to any comments that a recipient had added (B) who had still been harboring the illusion that E-mail exchanges are private, a watchdog group recently uncovered a trick for enabling an interloper to rig an E-mail message so that this person was privy to any comments that a recipient might have added (C) who still were harboring the illusion that E-mail exchanges are private, a watchdog group recently uncovered a trick enabling an interloper to rig an E-mail message so that this person is privy to any comments that a recipient would add (D) still harboring the illusion that E-mail exchanges are private, a watchdog group recently uncovered a trick that enables an interloper to rig an E-mail message so that this person will be privy to any comments that a recipient might add (E) still harboring the illusion that E-mail exchanges had been private, a watchdog group recently uncovered a trick that will enable an interloper to rig an E-mail message so that this person was privy to any comments that a recipient might add
recently 可以和过去时一起用啊。 a watchdog group recently uncovered a trick 是过去时。be privy的时态和add的时态都在uncovered之后。对比一下个选项这两个动词的时态，应该是一致的才对。 A will be privy和had added B was privy和might have added C is privy说明是一般的特性，不是什么条件使他变得privy E was privy看不出是uncovered之后的变化成的privy。 | 
