＿＿＿used to be thought that the earth was square.
#16931
A
He
B
What
C
It
D
That
推荐题目
—Do you have ready for the graduation ceremony，Ted?—No，we still have to find a famous speaker.
#14816
A
everything
B
something
C
anything
D
nothing
—How much vinegar did you put in the soup? —I’m sorry to say, ____. I forget.
#16550
A
no
B
no one
C
nothing
D
none
Various summer camps being available, we can choose based on our own interest.
#15627
A
either
B
one
C
each
D
it