Past simple vs. Past perfect sentences

The team _____ (be) very excited.

The players ______ (line up) for a photo when suddenly Katie ran up quickly. 

The players had lined up for a photo when suddenly Katie _____ (run) onto the playing field dressed in the Manchester uniform. 

 Katie ran onto the playing field dressed in the Manchester uniform and ____ (stand) next to them. 

Even though some of the players_________(notice) Karl, the photographer still took the photo. 

Even though some of the players had noticed Karl, the photographer still____ (take) the photo. 

Karl then _____ (go) back to his seat to watch the game.

Manchester United _____ (lose) the game.

Karl was happy because he ______ (meet) his heroes.