问题补充:
I’m concerned, we are going to take an exam in a month.
A. As long as
B. As far as
C. Just as
D. Even if
答案:
A. As long as
(答案→)B. As far as
C. Just as
D. Even if
解析:考查连词短语:A. As long as只要,B. As far as据…就…C. Just as就像,D. Even if即使,句意:据我所知,这个月我们要参加考试。As far as I’m concerned据我所知。选B。