求解， SC 大全 22 or 697

697.        The bank acknowledged that they are and will continue to experience difficulties as it attempts to deal with the precipitous fall of the dollar against the yen and the dislocations reflected in the stock market decline.

(A) they are and will continue to experience difficulties as it attempts

(B) they are and will continue to experience difficulties as they attempt

(C) it is and will continue to experience difficulties as it attempts

(D) it is experiencing and will continue to experience difficulties as they make an attempt

(E) its difficulties are likely to continue as it attempts

(E) 是正确答案。 可是 主句是 "The bank acknowledged ...", 是过去时， 那么从句就不可能是现在时， 或现在完成时， 或将来时； 那么就没有一个选项对了?

肯请大牛讲解， 如果主句是过去时， E 怎么可能对?

多谢!

主句过去时，从句一般现在时，这很普遍的。如从句是不依时间的推移而改变的自然现象或历史事实。