John was about to go back to sleep ______ suddenly his bedroom became as bright as day．
#26801
A
after
B
when
C
while
D
until
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This has reduced the amount of wasted food at some schools_____38 percent.
#27205
A
with
B
to
C
in
D
by
.For the sake of safety, I’m not ___ going out for a picnic on such a rainy day.
#27815
A
in memory of
B
in favor of
C
in honor of
D
in need of