-How amazing it is that astronauts are exploring outer space!  -It’s a challenge, I guess, _________man against nature.  
#28241
A
of
B
for
C
by
D
about
推荐题目
He is running____the wind towards the station_____Tom running ________the right. 
#28810
A
down; and; on
B
against; with; on
C
for; with; in
D
with; while; to
Don’t worry and I’ll get your car fixed ___ .
#26836
A
at no time
B
in no time
C
at a time
D
at all times