—Humans can’t live _______ air.—I agree with you. 
#48570
A
without
B
with
C
in
D
for
推荐题目
We all know that doing morning exercises ______. 
#50401
A
is good for our healthy
B
are good for our healthy
C
are good for our health
D
is good for our health
Don’t try to do everything at once. Take it a bit __________.
#50785
A
at times
B
at that time
C
at all times
D
at a time
--Can a plane fly_______ the Atlantic Ocean? --Yes, but it needs to go_________ the clouds for hours.
#50800
A
across, through
B
through, across
C
across, across
D
through, through