题目内容：
He must have had an accident, or he _____ then.A.would have been here
B.should be here
C.had to be here
D.would be here
参考答案：
选择题：He must have had an accident, or he _____ then.A.w
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- 题目类型：选择题
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A.would have been here
B.should be here
C.had to be here
D.would be here