My parents were quarrelling about me ____ I could not quite tell why．
#79999
A
since
B
though
C
if
D
until
推荐题目
All the photographs in this book，________ stated otherwise，date from the 1950s.(2012·陕西，25)
#30219
A
unless
B
until
C
once
D
if
Someone called me up in the middle of the night, but he hung up ______ I could answer the phone.
#31445
A
as
B
since
C
until
D
before
________ three times，but she still couldn’t follow what the old man said．
#31621
A
Having told
B
Having been told
C
She had been told
D
Though she had been told
Catherine's mother doesn’t allow her to go anywhere outside the town ________ another member of the family is along.
#29951
A
without
B
if
C
unless
D
with
She had a tense expression on her face, ______she were expecting trouble.
#34112
A
even though
B
as though
C
now that
D
in case