单项选择题

You may borrow the book, ______ that you do not lend it to anyone else.

A．on occasion
B．on condition
C．on purpose
D．only if
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单项选择题
How is it ______ your roommate's request and yours are identical
A．if
B．so
C．what
D．that
单项选择题
A love marriage, however, does not necessarily ______ much sharing of interests and res-ponsibilities.
A．take over
B．result in
C．hold on
D．keep to
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