问题补充:
My sister Shanghai for two years.
A. has been to
B. has gone to
C. has come to
D. has been in
答案:
A. has been to
B. has gone to
C. has come to
(答案→)D. has been in
解析:英语中表示一段时间的时间状语不能和瞬间动词一起使用,反之表示瞬间的时间状语不能是持续性动词一起使用。For two years是表示一段时间的时间状语,选项ABC表示瞬间动作,只有选项D表示持续性动作,故选D。