问题
选择题
The plane ______ when we got to the airport. [ ]
A. had taken off
B. was taken off
C. will take off
D. is taking off
答案
答案：A
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The plane ______ when we got to the airport. [ ]
A. had taken off
B. was taken off
C. will take off
D. is taking off
答案：A
