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Study hard , ______ you will not pass the exam .
#32806
A
and
B
otherwise
C
if
D
unless
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You have to take some necessities such as ropes, a flash, boots, ______ you may get lost in the mountain if going hiking.
#31411
A
so that
B
in order that
C
now that
D
in case
As we have planned, we’ll go to Beijing to attend her sister's wedding party. We'll also visit our mother school _____ we go there.  
#79913
A
unless
B
when
C
once
D
even if
— My teacher punished me this morning.—Why? ______ I know, you’ve done nothing wrong, 
#31973
A
as long as
B
as far as
C
as well as
D
as soon as
_______ is known to all, Lu Xun was famous as a great thinker.
#33281
A
Which
B
As
C
It
D
What
I was just at the school gate    the bell rang.
#31042
A
while
B
because
C
if
D
when
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