I fell asleep while working on this paper_______the computer on.
#26530
A
as
B
for
C
over
D
with
推荐题目
We must show concern ______ each other. 
#28368
A
with
B
for
C
at
D
to
He appears to be optimistic, but, ______, he is quite pessimistic.
#27023
A
in particular
B
on one hand
C
for one thing
D
as a matter of fact