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Havingbeentoldthathersondiedintheaccident,theoldwomanappearedverycalm,asifnothing_A.happenedB.werehappenedC.washappenedD.hadhappened

题目详情
Having been told that her son died in the accident,the old woman appeared very calm,as if nothing_
A.happened
B.were happened
C.was happened 
D.had happened
▼优质解答
答案和解析
D,had happened 过去完成时表示虚拟