选择 The American Civil War lasted four years ____ the North won in the end.A.after B.before C.when D.then

选择 The American Civil War lasted four years ____ the North won in the end.A.after B.before C.when D.then
选择 The American Civil War lasted four years ____ the North won in the end.
A.after B.before C.when D.then

选择 The American Civil War lasted four years ____ the North won in the end.A.after B.before C.when D.then
before
美国内战最后以北方胜利结束
所以 战争的持续发生在结束之前 选 before

B

选择A
北方最终胜利后,内战最终持续四年

美国内战持续了四年，北方才获得了胜利。
选b before“过了多久……才”
我们比较熟悉的句型是
it was +时间段+ before …” 表示“过了多久才…”
It was three days before he came back