这道sat语法题为什么这个错?
问题描述：
这道sat语法题为什么这个错?
Katherine felt that she has not had any understanding of the highly intricate workings of the stock market until her uncle took her to the New York Stock Exchange.
has not had 错了.why?不要告诉我是主从句时态一致的问题,sat语法的主从句不需要时态一致.
答
应该用过去完成时吧