—The accident might not have happened, had we been more careful.—But we ______.A_刷题宝

题干

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

A．weren’t

B．didn’t

C．hadn’t

D．don’t

上一题下一题 0.65难度单项选择更新时间:2017-06-30 12:14:29

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