计划7月或8月等签证拿到手后提前去学校报道,跟研究生院通过邮件联系是可以的,和宿舍科联系说是需要SGS同意,宿舍科回复如下“If you start your study earlier and want to stay in our student residence before 27 August 2012, please let us have a copy of supporting document from SGS first. Then we can pass it to our officer to review.”。请教:宿舍科所谓的“supporting document from SGS”具体指什么?仅仅是和研究生院的往来邮件证明就可以吗?有类似经历的麻烦赐教。