We don’t allow in the office．But you are allowed in the rest room．
A. smoking; smoking
B. to smoke; to smoke
C. smoking; to smoke
D. to smoke; smoking
网友回答
A. smoking; smoking
B. to smoke; to smoke
(答案→)C. smoking; to smoke
D. to smoke; smoking
解析：考查allow的用法：allow doing允许做某事，allow sb to do允许某人做…，句意是：我们在办公室不允许抽烟，但你可以被允许在休息室抽烟。选C。