An awful accident_____，however，occur the other day.A．doesB．didC．has toD．had to_刷题宝

题干

An awful accident_____，however，occur the other day.

A．does

B．did

C．has to

D．had to

上一题下一题 0.85难度单项选择更新时间:2010-04-26 09:03:29

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