Which of the following sentences is correctly written?

The fans were especially boisterous because the players kept throwing footballs into the stands.

Although the steaks are delicious I must save some of my appetite for the fruit tart, my favorite.

My best friend, Jeremy, is grounded, because he stayed out five hours past his curfew last Friday.

Until I get a replacement for my broken cellular phone I will not be able to call you on my way home.