________ he could call the police, the thieves had run away with the suitcase, leaving him shocked and helpless.
#30292
A
Before
B
Until
C
Because
D
Unless
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unless
B
when
C
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D
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you can borrow my car you promise not to drive too fast.
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unless
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even if
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A
whether
B
if
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that
D
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how
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which
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what
D
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