单项选择题
He has trouble understanding that other people judge him by his social skills and conduct.（）
A．style B．behavior C．mode D．attitude
单项选择题 Please do not hesitate to call me if I can be of further assistance.（）
单项选择题 She seemed to have detected some anger in his voice.（）
单项选择题 I am not certain whether he will come.（）
