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12、You don’t permit _______in the office, but you are permitted ______in the waiting room.  

A. to smoke;to smoke     B. to smoke ;smoking

C. smoking ;to smoke     D. smoking; smoking

12、C 

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You don’t permit _______in the office, but you are permitted ______in the waiting room.  

A. to smoke;to smoke     B. to smoke ;smoking

C. smoking ;to smoke     D. smoking; smoking

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