根据课文内容填出所缺短语。（共5小题，每小题1分，满分5分）
小题1:….but in 1963 I helped Nelson Mandela ___________________ some government buildings.
小题2:The design of the Amber Room was ____________________ popular in those days.
小题3:Both the Summer and Winter Olympic Games are held __________________. (定期地)
小题4:In September 1941, the Nazi army was near St Petersburg. This was a time when the two countries were __________________.
小题5:In relief Daisy __________________. “Don’t laugh,” said the elephant.