mr green ___ beijing for two weeks a.has been in b.has come to c.has been to
问题描述：
mr green ___ beijing for two weeks a.has been in b.has come to c.has been to
选择题
答
选A,has been in 表持续的状态,句子后面是for two weeks,所以为现在完成时,应该选表持续状态的.come to是瞬间状态,c选项介词搭配不当