In case of fire, stay low to the ground in a smoky room, ________ smoke always rises towards the ceiling.
#30873
A
as
B
when
C
while
D
once
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They are putting too much carbon dioxide into the atmosphere, ______ prevents heat from escaping from the earth into space.
#31962
A
what
B
that
C
which
D
who
The flight will be announced soon. ____ ,please remain seated.
#33984
A
Besides
B
After all
C
Meanwhile
D
In general
(2013·乌鲁木齐高三第一次诊断性测验)If we work with a strong will, we can overcome any difficulty, ________ great it is.
#30542
A
what
B
how
C
however
D
whatever
-----Do you have a minute? I’ve got something to tell you.-----OK, _________you make it short. You see the match between Argentina and Korea is on and I won’t miss every wonderful moment.
#34270
A
so long as
B
now that
C
if only
D
every time