Help!!!SOS!!!HELP ME!!!

1, Ground was covered with snow.
2.If I had been in your position, I would do it secretly (насчёт этого не уверена)
3.Both football teams are good.Any team can win and  everyone needs to win.
4.All this things are school property.
5.I won't do it.It is my responsibilities.
6.All this situation was desperate.Nobody knew what to do.