单选题 He has trouble understanding that other people judge him by his social skills and conduct .
【正确答案】 B
【答案解析】[解析] conduct做动词时意为：引导，管理，传导，但在这个句子中做名词，意为：行为，操行，可与behavior互换。style：风格；mode：方式，模式；attitude：态度，意见。故答案为B。