He tried his best to solve the problem, _______difficult it was.
#68277
A
no matter
B
no matter how
C
whatever
D
although
推荐题目
We would like to drop in at your house if ___________
#69786
A
you are convenient
B
it is convenient of you
C
it is convenient to you
D
you will be convenient
However _______, it’s worth it and I’ll get it .
#67730
A
the watch costs
B
much the watch costs
C
the watch will cost
D
much does the watch cost
The president stood by a window inside the room, ____, looking over the square.
#73411
A
where I entered
B
into which I entered
C
which I entered
D
that I entered
Life is like a long race _____we compete with others to go beyond ourselves.
#74277
A
why
B
what
C
that
D
where