David knocked at the door for nearly half an hour______Mary opened it, unwilling.
#30820
A
when
B
while
C
until
D
before
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I will not go to her birthday party ___________ I am invited.
#31792
A
as if
B
only if
C
even if
D
if only
English is understood all over the world ________ Turkey is spoken by only a few people outside Turkey itself.
#80284
A
while
B
when
C
if
D
as
Leave your key with your neighbor ________ you lock yourself out one day.(2012·辽宁)
#30437
A
as long as
B
even though
C
in case
D
as if
—What are you going to do this afternoon?—I’ll probably go for a walk later on________it stays fine.
#31226
A
as far as
B
so long as
C
even if
D
as though