Do you have any idea      it takes to successfully reach the top of Mount Everest?
#31635
A
whether
B
how
C
which
D
what
推荐题目
 ______ news came______ an unknown disease was spreading in the area.
#31910
A
Disturbing; which
B
Disturbed; which
C
Disturbing; that
D
Disturbed; that
You ought to have a good rest _______ you have finished your painting.
#31835
A
even if
B
as if
C
now that
D
ever since