________ the fire breaks out，he is the first to arrive at the scene.
#30229
A
Every time when
B
Moment
C
No matter whenever
D
Every time
推荐题目
______ most of us considered solving the problem as soon as possible, he considered it of no importance．
#33475
A
When
B
While
C
If
D
As
Life is ten percent ________ happens to you and ninety percent ________ you respond to it.
#30338
A
which; how
B
what; what
C
that; that
D
what; how
_____I saw the West Lake, I was struck by its beauty.
#79690
A
The first time
B
For some time
C
For the first time
D
At the first time
They won't let him out of the hospital ________ he's completely recovered.
#30689
A
since
B
until
C
if
D
as
(2013·济南一模)________ you are unable to deal with it, perhaps we should ask someone else for help.
#30428
A
Although
B
While
C
Since
D
Unless