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—— Hurry up. The bus is coming! —— Oh, no, we mustn’t cross the street ______ the traffic lights are green.
#55778
A
after
B
since
C
when
D
until
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They didn’t go to bed ________ they finished their homework.
#55880
A
when
B
because
C
until
D
if
My friend’s flight had taken off _________ I got to the airport to see him off.
#56042
A
while
B
after
C
before
D
until
— Someone wants you on the phone. — _______ nobody knows I am here.
#56606
A
Besides
B
And
C
But
D
So
He won’t join in the party. I won’t, _________.
#57283
A
yet
B
either
C
also
D
too
 —How do you like the popular documentary “A Bite of China”（《舌尖上的中国》）?—Excellent! You won’t realize how wonderful our Chinese food is _____ you watch it.
#55212
A
when
B
as
C
after
D
until