单选题
He must have had an accident, or he _____ then.无
A、
would have been here
B、
had to be here
C、
should be here
D、
would be here
【正确答案】
A
【答案解析】
句意: 他一定是发生意外了, 否则的话, 那时候应该已经到这儿了。 本题考查虚拟语气, 对过去情况的假设, 主句用would have done, 因此本题的正确答案为A。
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