单项选择题

A．Once.
B．Twice.
C．Three times.
D．Four times.
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单项选择题
Being financially better off has made shoppers more sensitive to buying ’’green’’.
A．Y
B．N
C．NG
单项选择题
A．She can’’t send the message right now.B．She’’s not sure if the computer is fixed.C．She has to turn down the man’’s request.D．She has to post a letter instead.
A．She can’’t send the message right now.
B．She’’s not sure if the computer is fixed.
C．She has to turn down the man’’s request.
D．She has to post a letter instead.
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