Tounderstand（）warscontinuetogoonwhennearlyeveryonewantstohavepeace,wemustlookintothenatureofwar. A: why B: whether C: if D: that
Tounderstand（）warscontinuetogoonwhennearlyeveryonewantstohavepeace,wemustlookintothenatureofwar. A: why B: whether C: if D: that
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