英语短文完形填空 能不能讲解一下为什么填这个?

英语短文完形填空 能不能讲解一下为什么填这个?
The 90-year-old man Harry Nelson broke the world record last year.He attended ___ than 18 Olympic Summer Games.
Harry Nelson ___ from California,the US.His love ___ the Olympic Games began in 1932 when his mother took him to the Los Angeles 10-year-old Harry was so interested in the games that he ___ an Olympic field near his house with his brothers and cousins.They practiced sports there.
In high school,Harry decided to take ___ in as many Summer Olympics as he could.But it's not easy.To attend the 1948 London Games,he ___ to sell his car and travel by ship.And it ___ him five days to teavel to London by ship.
In 2008,Mr.Nelson wrote a book ___ his 76-year Olympic journey.In the book Mr.Nelson says if it's OK for him,he will attend the 2016 Brazil Olympics.