OG16Verbal 48题求解！！

stephi9298

48.A recent court decision has qualified a 1998 ruling that workers cannot be laid off if they have been given reason to believe that their jobs will be safe, provided that their performance remains satisfactory.

(A) if they have been given reason to believe that their jobs will
(B) if they are given reason for believing that their jobs would still
(C) having been given reason for believing that their jobs would
(D) having been given reason to believe their jobs to
(E) given reason to believe that their jobs will still
正确答案是A 求大神解释下为什么用have been？will？还有这句话怎么理解啊 我觉得句意好怪啊

咖啡印象

个人觉得这里并不是虚拟语气的用法， 而是if引导的条件句，主句用一般将来时，表示这件事情的结果。举个例子——If he don't hurry up, he will be late for school.