15.---The accident might not have happened had we been more careful. --- But we at that time. A.don’t B.didn’t C.hadn’t D.weren’t 查看更多

 

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---The accident might not have happened had we been more careful.

      --- But we ________ at that time.

A.don’t         B.didn’t        C.hadn’t          D.weren’t

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— The accident might not have happened had we been more careful.

— But we ______ at that time.

A.weren’t    B.didn’t       C.hadn’t      D.don’t

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―Oh, my God. The accident might not have happened had we been more careful.

―But we    at that time.

―Yes. That's      we were wrong.

A. didn't; where      B. hadn't; what    C. weren't; where   D. don't; what

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-The accident might not have happened had we been more careful.

-But we _____ at that time.

       A.don’t    B.didn’t      C.hadn’t   D.weren’t

 

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-The accident might not have happened had we been more careful.

-But we _____ at that time.

      A.don’t    B.didn’t     C.hadn’t   D.weren’t

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