问题补充:
-- was it they discovered the entrance to the underground place?
--Totally by chance.
A. How; that
B. What; that
C. When; when
D. Where; that
答案:
(答案→)A. How; that
B. What; that
C. When; when
D. Where; that
解析:本题是强调句的考查。考生可以将问句转为陈述句语气,这样题意就比较清晰:“It was how that they discovered the entrance to the underground place.”