Alltheflights______becauseofthesnowstorm,wehadtotakethetraininstead. A.werecanceleD
A.had been canceleD B.having canceleD C.having been cancele正确答案D
Alltheflights______becauseofthesnowstorm,wehadtotakethetraininstead. A.werecanceleD
A.had been canceleD B.having canceleD C.having been cancele正确答案D