单项选择题 He has trouble understanding that other people judge him by his social skills and conduct.（）

单项选择题Please do not hesitate to call me if I can be of further assistance.（）

A．contact
B．see
C．help
D．touch

单项选择题She seemed to have detected some anger in his voice.（）

A．noticed
B．heard
C．realized
D．got