Only when he failed the exam ________ that he didn’t work hard. (原创) A．he regretted B．did he regret ...
2023-01-07 15:20:11 188次 河北省09-10学年高一下学期第二次调研考试（英语） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Only when he failed the exam ________ that
he didn’t work hard. (原创)
|
A．he regretted
|
B．did he regret
|
C．had he regretted
|
D．does he regret
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