He must have had an accident or he here for class then .A. had to be B. should be C. wou

问题补充：

He must have had an accident , or he here for class then .

A. had to be

B. should be

C. would be

D. would have been

答案：

A. had to be

B. should be

C. would be

(答案→)D. would have been

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