The school shop,              customers are mainly students, is closed for the holidays.
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A
which
B
whose
C
when
D
where
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I have a lot of books, half of ______ novels.
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A
which
B
that
C
whom
D
them
        that they may eventually reduce the amount of labor needed on construction sites by 90 percent.
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A
Such construction robots are clever
B
So clever the construction robots are
C
Such clever construction robots are
D
So clever are the construction robots