It was the surprising degree of accuracy that the old man predicated with shocked the public.
A. how
B. that
C. who
D. which
网友回答
A. how
(答案→)B. that
C. who
D. which
解析：句意：这是老人预测的惊人的精确度震惊了公众。这里是强调句，结构是It is/was+强调部分+that+其余部分，判断是否是强调句的方法是：去掉强调结构，如果这句话还是成立的，就是强调句，拿这句话举例，如果去掉强调结构，就成了the surprising degree of accuracy that the old man predicated with shocked the public.由此可知这句话是成立的，所以是强调句，强调的是这句话的主语。所以选B。