LastFriday,asusualIrodemybikehome.Butatacrossing,I61.
問題詳情：LastFriday,asusualIrodemybikehome.Butatacrossing,I61.__________(sudden)knockedanoldmanoffhisbike.Ihurriedoverandfoundthathisleg62.____________(injure).Nervousandworried,Icalledmymomandtoldherw...