Three scores more,_they could have won the last gameA.butB.soC.andD.or
问题描述：
Three scores more,_they could have won the last game
A.but
B.so
C.and
D.or
答
Three scores more,_they could have won the last game
A.but
B.so
C.and
D.or
选C
表示承接关系
多了些分数，他们就可以赢得比赛
答
选D
they could have won the last game 意思 他们本应该赢得最后一场比赛但却没有；
所以句子前后是转折关系,用or 否则