案例分析题 （10）处应填写（）

单项选择题They thought that he had done nothing wrong and had a clear ______.

单项选择题According to the passage, （）.

A．we can hardly understand what people"s gestures mean
B．we can not often be sure what people mean when they describe their feelings in words or gestures
C．words can be better understood by older people
D．gestures can be understood by most of the people while words can not