问题详情：
My father doesn't allow ________， so you are not allowed
________ inside.
A．smoking; smoking B．to smoke；smoking
C．smoking；to smoke D．to smoke；to smoke
【回答】
C 点拨：本题用词语运用法解题。allow doing允许做……；allow sb. to do允许某人做……，它的被动形式是sb. be allowed to do某人被允许做，否定形式是sb. be not allowed to do。故选C。
知识点：相似 相近词比较
题型：选择题
