Yourgrandfatherstill的知识精选

---Yourgrandfatherstillseemsveryenergetic,althoughheisa...
问题详情:---Yourgrandfatherstillseemsveryenergetic,althoughheisalreadyinhisseventiesnow.---Yes,he_______inthearmyforthreeyearswhenhewasyoung.A.wouldserve            B.servedC.hadserved    ...
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