It was totally by chance         they discovered the entrance to the underground palace.
#84683
A
when
B
which
C
why
D
that
推荐题目
I wonder _______ there are so many natural disasters across the world in 2010. 
#84725
A
why is it
B
it is why that
C
why is it that
D
why it is that
 It’s exactly ______ we do ______ has changed the world.
#84983
A
which; that
B
how; that
C
how; what
D
what; that
I have always been honest and straightforward, and it doesn’t matter ______ I’m talking to.
#85152
A
who is it that
B
who it is that
C
it is who that
D
it is whom that