(2013·青岛一模)Scientists are still wondering ________ the Egyptians built the pyramids so long ago.
#67260
A
how it is that
B
how is it that
C
it is how that
D
that how it is
推荐题目
Here is such a difficult text _____ none of us can understand. Here is such a difficult text _____ none of us can understand it.
#71977
A
as
B
which
C
that
D
where
his father has been away for more than one year, John can still keep doing what he needs to.
#67708
A
While
B
When
C
As
D
Whether
The field research will take Luffy and Steven about two weeks; it will be a long time _______ we _______ again.
#67501
A
before; met
B
since; meet
C
before; meet
D
since; met
We will never give in ______ they do or say about our plan.
#68665
A
No matter when
B
how
C
whatever
D
although
Don’t promise anything ______ you are one hundred percent sure.
#74420
A
whether
B
after
C
how
D
unless