---Is Mr Smith still in Shanghai?---Yes，he there for two monthsA. has beenB. has goneC. h

---Is Mr Smith still in Shanghai?
---Yes，he there for two months．
A. has been
B. has gone
C. has been to
D. has gone to

(答案→)A. has beenB. has goneC. has been toD. has gone to解析：句意：史密斯先生在上海吗？对，他在上海有两个月了。have been to曾经去过某地，强调经历， have been in在某地，表状态，have gone to去了某地，表示不在这里。如果是地点副词to/in 要省略。和一段时间连用，动作要用延续性的或状态。There,地点副词，要省略in。故选A。

谢谢了