at a concert
Том не будет петь на концерте, потому как простудился.
Tom won’t sing at the concert because he’s caught a cold.
На концерте было больше народа, чем мы предполагали.
There were more people at the concert than we expected.
She will sing at the concert.
На концерте было много народа.
There were a lot of people at the concert.
Я был на концерте Тома.
I was at Tom’s concert.
There were a lot of people at the concert.
На концерте было слишком много народа.
There were too many people at the concert.
Том был на концерте.
Tom was at the concert.