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I earn only 50 dollars a week,       she earns 80 dollars.
#32287
A
when
B
while
C
as
D
since
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Stand up _______ you fell down, and I’m sure you’ll succeed in time.
#33230
A
until
B
where
C
before
D
which
He told me that he would remember the days in Beijing University forever____ he got much help there from Professor Zhu.
#34614
A
where
B
which
C
that
D
when
— How long will it be _______ the president pays another visit to China?— It all depends. 
#32222
A
before
B
until
C
since
D
when
.The fact has worried many scientists ______ the earth is becoming warmer and warmer these years.
#34793
A
what
B
which
C
that
D
though
I don’t understand how he can say that everything is fine ________ it’s so obvious that it’s not.
#31223
A
unless
B
when
C
so that
D
in case
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