Use the correct form of Participle I or Participle II. 26. Some of the grass is (tread) down where people have been playing

Some of the grass is BEING TREAD down where people have been playing football. - Причастие первого типа в пассивном залоге (Present Participle Passive), так как трава не сама себя затаптывает.

It\'s no use crying over SPILLED milk. - Причастие второго типа (Past Participle).