【2016真题】21.We were caught in a traffic jam. By the time we arriv
2023-12-01插本2008-2016年英语真题（带解析）
【2016真题】21.We were caught in a traffic jam. By the time we arrived at the airport the plane______.
A.will take off
B.would take off
C.has taken off
D.had taken off
正确答案是D
