17.— ______ was it ______

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?

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