He tried his best to solve the problem, _______ difficult it was.
#67486
A
whatever
B
however
C
whichever
D
wherever
推荐题目
There was________much smoke________they couldn’t see across the hallway.
#66861
A
too；that
B
such；as
C
so；that
D
rather；than
All the neighbors admire this family, _________the parents are treating their child like a friend.
#71818
A
why
B
where
C
which
D
that
The World Expo 2010 is being held at a time the world is looking for a new kind of balance between nature and cities．
#69967
A
when
B
where
C
which
D
that
We have gathered nearly 100,000 quilts, ___ up to half have gone to the flood-hit areas.
#73995
A
with which
B
in which
C
for which
D
of which
You will find the game is not so difficult to play ______ you understand its rules.
#67593
A
until
B
since
C
before
D
once