It used to be thought _____ the Earth was flat.
#16601
A
as
B
when
C
since
D
that
推荐题目
—Can I come this afternoon or tomorrow morning?— is OK. I'm free today and tomorrow.
#57723
A
Either
B
Neither
C
Both
D
None
Space exploration is something that China has done to create jobs in a high-tech industry, to show “______ don't just make cheap clothes”.
#16455
A
We
B
You
C
They
D
I
-We have worked day and night for a whole month.--Why don’t you bring ______ to the attention that a good rest is badly needed?
#16053
A
that
B
which
C
this
D
it
A US report predicts that in 15 years' time the economy in Asia will be larger than ________ of North America and Europe combined.
#14710
A
what
B
that
C
one
D
those
We can't avoid negative thoughts，but we should make it a habit to replace each negative thought with a positive________．
#14841
A
one
B
ones
C
the one
D
that