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．Ram explained to his mother ________ he would get home late that night because of extra work.
#30411
A
that
B
which
C
what
D
whether
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At that time the blacks reached a stage ________they had almost no rights at all.
#33663
A
when
B
which
C
where
D
what
She found her calculator _______ she lost it.
#34705
A
where
B
while
C
in which
D
that
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
We’d better set off，or it will be dark         we know it.
#80424
A
before
B
after
C
when
D
until
Who do you think is the man          you are going to turn for help when you are       ?
#32906
A
who; in danger
B
to whom; in trouble
C
with whom; in danger
D
for whom; in trouble