“我心中有一个小秘密，我不能告诉你。”这句话表明

A．人与人之间不能真诚地沟通

B．人与人之间不能相互信任

C．人人都有隐私权

D．有秘密的人，心理是不健康的

--- Do you have any idea why the bus – drivers are on strike?

--- As far as I know, they are ____a pay rise.

A．calling off

B．calling at

C．calling in

D．calling for