第1个回答 2011-03-13
B.
Not until在句子首,后面要用倒装句。
Not until Tom experienced a series of defeats 直到Tom经历了一连窜的打击之后,did he realized that his idea was wrong 他才意识到自己的想法错了。
这个讲解,我也不晓得要怎么讲解,只能另外给一句例句,在一个英文网站上看到的:
Not until she took up rock climbing did she overcome her fear of heights.
A 的话用了过去完成时
过去完成的一般用于如下句子:
Hardly had he stepped outside when it started to rain.
过去完成时用于表述先一步发生的动作。
C和D都没有倒装,所以是错的。