题型:判断题 —Does your brother serve in the army?—No, not now. But he _____ in the army for 8 years.[ ]A. would serve B. was serving C. had served D. served 查看答案
题型:判断题 合同主体不变而变更内容的情形主要有( )A.合同当事人订立变更合同内容的协议B.当事人约定的引起变更合同内容的事由出现C.合同当事人中的一方行使变更合同的形成权D.应给付的特定标的物减少,合同义务人不能就原约定的内容为给付E.合同义务人违约,原合同不再继续履行而改为支付违约金或赔偿损失 查看答案