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英语高手请进.Hesaidthatthedrivermusthavehadanaccident;otherwisehebythen.A:wouldhavearrivedB:musthavearrivedC:shouldarrivedD:wouldarrive请解释答案并给出“虚拟用法”的相关知识.

题目详情
英语高手请进.
He said that the driver must have had an accident;otherwise he___
by then.
A:would have arrived B:must have arrived
C:should arrived D:would arrive
请解释答案并给出“虚拟用法”的相关知识.
▼优质解答
答案和解析
A