ItwassometimebeforeIrealizedthetruth.
Itwasn'tlongbeforeshebecameabravesolider.
Afterthatitstilltooksevenyearsbeforetheygotmarried.
注意:当主句的谓语动词为延续性动词时,before与until有时可以互换。Itwasanhourbefore/untilthepolicearrived.
⒈(2004天津)Itwasevening________wereachedthelittletownofWinchester.
AthatB.untilC.sinceD.before
2.(2004全国)Severalweekshadgoneby________realizedthepaintingwasmissing.
A.asB.beforeC.sinceD.when
3.(2005广东)TheAmericaCivilWarlastedfouryears______theNorthwonintheend.
A.afterB.beforeC.whenD.then
4.(2005山东)Itwassometime_______werealizedthetruth.
A.whenB.untilC.sinceD.before
5.(2006四川)-Whydidn'tyoutellhimaboutthemeeting?
-Herushedoutoftheclassroom_______Icouldsayaword.
A.beforeB.untilC.whenD.after
6.(2006福建)-Howlongdoyouthinkitwillbe__chinasendsamannedspaceshiptothemoon?
AwhenB.untilC.thatD.before