In a blow to those 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 as the message is forwarded to others or sent back and forth.
语法 Sentence Correction-3927
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正确的用户笔记
海蓝新雨 2015-07-25 15:59:14
同A
ritarong 2015-02-08 10:09:52
a trick of doing sth
lyf0420 2015-12-04 11:40:03
语法--时态:had still harbored...
LM檬先森。 2016-06-10 20:27:38
B. for enabling的错误见A选项解释;who had still been过去完成时使用错误：过去完成时用于表达已经完成了的动作，但是此处又使用了still，表示现在仍然，出现语义上的矛盾。
Williamwy 2015-08-23 22:28:05
those who... awkward, " those" and "who" are pronouns, and these two can not use altogether.
