_________ the players tried their best to win the game for their country.

问题描述:

_________ the players tried their best to win the game for their country.
A.Greatly encouraged B.Having greatly encouraged
  C.To begreatly encouraged D.When encouraging
为什么选A

Greatly encouraged 是过去分词,做状语和主语之间是被动关系.而B 和D 都是现在分词表示主动.C 虽然是被动但表示目地所以不用.