问题
选择题
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
答案
答案：C
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。