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I’ll help you _______ I don’t sleep for night.
#33116
A
though
B
although
C
even if
D
as if
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All the photographs in this book,     stated otherwise, date from the 1950s.
#30755
A
unless
B
until
C
once
D
if
 Work hard at your lessons, ______ you’ll fail the exams again.
#30943
A
and
B
but
C
otherwise
D
besides
 The new policy allows a couple to have a second birth _____either is an only child.
#30142
A
though
B
if
C
unless
D
until
Several weeks had gone by____I realized the painting was missing. 
#31267
A
as
B
before
C
since
D
when
All the economists are working on   the financial crisis can be prevented, which has caused a huge loss throughout the world. 
#30608
A
how
B
when
C
that
D
why
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