January 1st, 1997 is the historic date ____ Britain joined the Common Market.
A.when
B.where
C.which
D.who
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is there anything ____ to you?
A.that belong
B.which belongs
C.that belongs
D.that is belonged
Is this house the one ____ you once lived in your childhood?
A.when
B.where
C.what
D.which
_____ is known to the world, Mark Twain is a great American writer.
A.That
B.Which
C.As
D.It
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