The Greens _____ China for five years.A.has been in B.have been in C.went to D.has gone to 为什么不用have been to

Question

The Greens _____ China for five years.
A.has been in B.have been in C.went to D.has gone to 为什么不用have been to

Answer 1

用介词to,表示“去,到的方向“,
have been to China 说明去了中国(动作已经发生了）,但后面不能跟一段时间（总不能不停的去吧）
这里用in,表示”在“的状态,后面可以接一段时间,说明这段时间以来一直都在中国.