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If you need more information, please contact us ______ telephone or email.

A.in
B.on
C.by
D.for
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We thought that ______ we were in the area, we’d stop by and visit them.
A.where
B.since
C.unless
D.Until
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In Canada, citizens, ______ their background, are free to keep and promote their cultural heritages.
A. regardless of
B.instead of
C.owing to
D.according to
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