问题
选择题
Only when the meeting was over ___ go back to meet his friend. [ ]
A. he could
B. he was able to
C. was he able to
D. was able to he
答案
答案：C
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Only when the meeting was over ___ go back to meet his friend. [ ]
A. he could
B. he was able to
C. was he able to
D. was able to he
答案：C