用过去分词形式改写下列句子1thebuildingfelldownimmediatelyaftertheterroristsattackedit.2.thescientistsstoppedtohavearestbecausehewastiredout.3.ifwehadgivenoreattention,thetreescouldhavegrownbetter.4.thedisc

　　用过去分词形式改写下列句子

　　1thebuildingfelldownimmediatelyaftertheterroristsattackedit.

　　2.thescientistsstoppedtohavearestbecausehewastiredout.

　　3.ifwehadgivenoreattention,thetreescouldhavegrownbetter.

　　4.thedisc,whichwesdigitallyrecordedinthestudio,soundedfantasticatthepartylastnihgt.

　　5.heisnoteasytogetalongwith,butthefriendshipofhis,onceitisgained,willlastforever.