依次填入句中横线处的词语，最恰当的一项是每个时代都有其特定的风尚，人们在生活中________，并在行动上追随效仿，自然会形成当时的一种文化趋向。当然，文化趋向并不像风尚那样没有定向，它会________某个阶层的文化追求，进而形成一个社会的文化认同，________凝聚起整个民族的情感。

Sales director is a positioncommunication ability is just as important as sales.

What about taking a walk after dinner—______________.

It is______ of you to rush into the teachers’ office without knocking at the door.

19．China is a great country with a long history, ______ we all know it