问题补充:
It was not until dark he found that it was the correct way to solve the problem.
A. that
B. what
C. which
D. when
答案:
(答案→)A. that
B. what
C. which
D. when
解析:考查强调句的特殊句型:It’s not until ….that…,直到…才…,值得注意的是not until不是在句首,后面不能倒装,句意:直到天黑他才知道这是解决问题的正确的办法。选A。