题目内容
--- Had we been more careful, the accident might not have happened.
--- But we _____ at that time.
A. hadn’t B. didn’t C. weren’t D. might not
B
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题目内容
--- Had we been more careful, the accident might not have happened.
--- But we _____ at that time.
A. hadn’t B. didn’t C. weren’t D. might not
B