1、ltwastenyearssincewehadhadsuchawonderfultime.
2、BeforeIwenttobedIhadfinishedmyhomeworkyesterday.
3、Shewouldhavecomeifshehadn’tbeensobusy.
4、Hetoldmethathehadpassedtheexam.
5、hehadhadbreakfast
6、Hehaddonesomethingwrong
7、Shefoundthekeythatshehadlost
8、WhenIwokeupithadalreadystoppedraining.
9、不停的流水把这些石头冲刷得很光滑。
10、日久天长，石阶已经磨得光溜溜的。
11、lreturnedthebookthatlhadborrowed
12、Wehadlearned5000wordsbytheendoflastmonth
13、Ihadintendedtocomeovertoseeyoulastnight,butsomeonecalledandIcouldn'tgetaway.
14、Iwonderedwhohadtakentheumbrellawithoutpermission.
15、ShesaidthatshehadneverbeentoParis
16、Ifyouhadcomeyesterday,youwouldhavemethim.
17、Overtheyears,thestonestepshadwornsmooth.
18、Thestoneshavebeenwornsmoothbytheconstantflowofwater.
19、Nosoonerhadhelefehomethanitbegantorain
20、Ihadn'tlearnedanyEnglishbeforeIcamehere.
21、Wehadhopedtocatchtheearlybus,butfounditwasgone.
22、Ihadfinishedthecompositionbeforesupper.
23、Hisclothes,thougholdandworn,lookedcleanandofgoodquality.