单项选择题

Social etiquette in the United States allows people to ______.

A．be a few minutes late for interviews
B．be up to a half-hour late for some parties
C．keep a friend waiting for less than 30 minutes
D．come a few minutes earlier to any appointment

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热门试题

单项选择题

Minister Zheng's main purpose is to ______.

A．describe the difficult employment situation
B．urge his departments nationwide to do more to help solving the problem
C．warn people of unemployment problem
D．explain the present employment situation

单项选择题

Which of the following statement is true

A．Humans do not have adequate knowledge about animal languages.
B．We are now very much aware of animal languages.
C．Most of animals use their facial expressions.
D．All animals make sounds to communicate with each other.