(2013·湖北高考)In much of the animal world, night is the time ________ for sleep —pure and simple.
#11427
A
set aside
B
set down
C
set off
D
set up
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Please wait here. I’ll be back in _____ hours.
#14490
A
two and half an
B
two and a half
C
half and two
D
two a half
The librarian took a story book _____ from the shelf and gave it to the girl.
#13830
A
in vain
B
at random
C
at the moment
D
at any rate
You should study the details of the policy        before you sign it.
#11635
A
in return
B
in advance
C
at ease
D
on purpose