17.— ______ was it ______ they discovered the entrance to the underground palace?— Totally by chance.A.What; that B.How; that C.When; how D.Where; that D为什么不可以呢?

问题描述:

17.— ______ was it ______
they discovered the entrance
to the underground palace?
— Totally by chance.
A.What; that
B.How; that
C.When; how
D.Where; that
D为什么不可以呢?

B

根据回答内容来确定疑问代词的。
回答的是:凑巧而已。
所以问题在问如何发现地下宫殿的入口。

虎年快乐
他们怎样找到地下宫殿的?偶尔找到的
通过上下问意思

很显然是B啊= =