Though the horses got off to a good start,it was not long ___ over half of them were out of the race

题目

Though the horses got off to a good start,it was not long ___ over half of them were out of the race.
a.after b.until c.when d.before

答案

选:d.beforeIt is/was +时间段+before从句:表示在做某事之前有...时间; 过...时间就...It is/was not long before ...过不了多久就.get off to a good start 有一个好的开始 /开头顺利 out of the race退出比赛句意:...