单项选择题

______ beef consumption has been on the decline, a task force has been created to identify reasons.

A．Until
B．That
C．Because
D．Why
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单项选择题
Our office address has ______ changed, so please contact us at our new mailing address as printed on the envelope.
A．usually
B．recently
C．promptly
D．instantly
单项选择题
Customers can obtain a membership card ______ they present their personal information.
A．however
B．in case
C．only
D．as long as
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