题目：By the time she arrived, the concert _______ for half an hour.
2024-11-13
By the time she arrived, the concert _______ for half an hour.
A. Had been on
B. Was on
C. Will be on
D. Is on
正确答案：A
试题解析：暂无
By the time she arrived, the concert _______ for half an hour.
A. Had been on
B. Was on
C. Will be on
D. Is on
正确答案：A
试题解析：暂无
