问题
Unfortunately, when I dropped in, DrGreen ______, so we only had time for a few words
A:just left
B:has just left
C:had just left
D:was just leaving
B:has just left
C:had just left
D:was just leaving
正确答案是：
同类题型
Which province would you like to go to, Shandong or Hainan—_______.I only want to go to Sichuan.
Why not practice your _________English in _________ English-speaking country
Happy New Year, Simon. — ___________
___________some measures, wemight have prevented the environmental pollution
______, his ideas was accepted by all the people at the meeting.