单项选择题

Mr. Daley is our most skilled speaker; ______, he is unavailable to give the presentation.

A． besides
B． nevertheless
C． for example
D． while
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单项选择题
People either don't have the money ______they aren't willing to spend it.
A． and
B． neither
C． or
D． although
单项选择题
The competitor's attempt to______ the new company was stopped.
A． take off
B． take over
C． take to
D． take out
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