She is the only one of the girls in our class______ been to the United            States. 
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A
who have
B
that had
C
whom has
D
that has
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The tall boy ______ you just met is my brother.
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A
who
B
which
C
where
D
when
The girl____was my girlfriend.
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A
you just talked
B
whom you just talk to her
C
who you just talked
D
whom you just talked to