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You won’t discover the truth ______ you look into the matter yourself.
#31855
A
unless
B
while
C
although
D
since
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_________ we admit that there are still some problems about NMET, we don't mean that it is of no use.
#80198
A
Until
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While
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Many teenagers say that _____ they have a lot of friends, they really have no best friend.
#32317
A
when
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if
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because
The other day ,my father drove his car at _____I thought was a dangerous speed.
#32075
A
as
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that
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what
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which
_____, experts point out that students can easily fail at starting their business because of a lack of preparations. 
#80650
A
But
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However
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while
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    we should exploit the Antarctic’s natural resources is open to discussion.
#32820
A
What
B
Whether
C
If
D
That
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