--- I hear Sam has gone to Qingdao for his holiday.
--- Oh, how nice! Do you know when he ?
A.left | B.was leaving | C.has left | D.had left |
--- I hear Sam has gone to Qingdao for his holiday.
--- Oh, how nice! Do you know when he ?
A.left | B.was leaving | C.has left | D.had left |