Have you ever wondered ______ there are so many natural disasters across the world in 2010?
#69818
A
which it is that
B
what is it that
C
how it is that
D
why it is that
推荐题目
There is no doubt _______ nearsightedness is a serious problem among the youth of our country.
#67052
A
/
B
which
C
whether
D
that
– What do you think of teaching, Bob?-- I find it fun and challenging. It is a job ________ you are doing something serious but interesting.
#71025
A
that
B
which
C
when
D
where
I think you ought to end it ____ it is too late, or you’ll kill yourself.
#73154
A
even if
B
before
C
so that
D
once