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
推荐题目
Parents are advised to take pressure_____a child and give him or her some encouragement before an exam.
#27668
A
off
B
over
C
from
D
to
—Thank God you’re safe!—I stepped back，just________to avoid the racing car. (2012·江苏，29)
#25260
A
in time
B
in case
C
in need
D
in vain
A clean environment can help the city bid for the Olympics，which ________ will promote its economic development.
#25103
A
in nature
B
in return
C
in turn
D
in fact