Paul had a terrible accident. He realised the true dangers of speeding only then.6/28Paulhadaterribleaccident.Herealisedthetruedangersof speedingonlythen.SuchwashisterribleaccidentthatPauldidn’trealisethetruedangers ofspeeding.OnlywhenPaulhadrealisedthetruedangers ofspeedingdidhehave aterribleaccident.Haditnotbeenforhisterribleaccident,Paul wouldn’trealisethetruedangersofspeeding.Only after Paul had had a terrible accident did he realise the true dangers of speeding.Giải thíchChọn D