根据句意，用所给单词或短语的适当形式填空。（每词或短语只限使用一次）

we   hero   safe   ninety-nine   catch up with

There are many national                       in our country.
We enjoyed                       very much at the party last night.
Tomorrow it will be my grandmother’s                      birthday. We will celebrate it at home.
She                      her classmates and took part in the competition successfully.
It’s believed that the school is one of the                       places for children.