问题
选择题
It was not until the 18th century that man realized that the whole of the brain was involved in the working of the mind， ？
A．was it
B．wasn’t it
C．did they
D．didn’t they
答案
答案：A
考查反意问句，反意问句一般都是和主句一致，这句话是强调句，和it was一致，因为前面是否定，反意问句是否定式。句意是：知道18世纪人类才意识到大脑是和思维的工作有关的。选A。