LastFriday,asusualIrodemybikehome.Butatacrossing,I61.
问题详情：LastFriday,asusualIrodemybikehome.Butatacrossing,I61.__________(sudden)knockedanoldmanoffhisbike.Ihurriedoverandfoundthathisleg62.____________(injure).Nervousandworried,Icalledmymomandtoldherw...