It's no surprise that our team should have won the game.

问题描述:

It's no surprise that our team should have won the game.
为什么要用“should have done
It makes no difference when we shall have lessons.
为什么要用“shall have done”

(我们)对于我们的队伍赢得了这场比赛并不感到惊讶.
缺符合逻辑关系的主语