We don’t allow in the office. But you are allowed in the open air.
A. smoking; smoking
B. to smoke; to smoke
C. smoking; to smoke
D. smoke; smoking
网友回答
A. smoking; smoking
B. to smoke; to smoke
(答案→)C. smoking; to smoke
D. smoke; smoking
解析：这题第一空考查allow doing，第二空考查allow sb to do，句意是：我们不允许办公室抽烟，但你可以被允许在户外抽烟。选C。