14.Mr.Brown together with his family ____ just arrived in Xi’an.为什么
问题描述：
14.Mr.Brown together with his family ____ just arrived in Xi’an.为什么
A.has B.have C.had D.are
答
A
主语是Mr.Brown,together with his family 作伴随状语修饰arrived,用第三人称单数,just强调过去的动作对现在的影响,用完成时