My first ________ of him was that he was a kind and thoughtful young man.(2012·山东，24)

 After the earthquake, the president _____ a three-day period of mourning, the first-ever event of its kind for ordinary people.

 The film is very interesting. _______students have seen it.

With several rounds of talks, the union leaders successfully          an agreement for a shorter working week.

He became self-satisfied because of his _____.