___used to be thought that the earth was square. 
#16931
A
He
B
What
C
It
D
That
推荐题目
There is _______ wrong with your watch. Let me check it. 
#57351
A
something
B
everything
C
nothing
D
anything
A smile costs _______, but gives much.
#14579
A
anything
B
something
C
nothing
D
everything
I agree with most of what you said, but I don’t agree with        .
#57984
A
anything
B
everything
C
nothing
D
something