2.She moved to Hainan ten years ago.We____ each other since then
问题描述：
2.She moved to Hainan ten years ago.We____ each other since then
A.did"t see
B.haven"t seen
C.wouldn"t see
D.hadn"t seen
告诉这道题涉及到了什么语法
答
选择B,现在完成时态,表示从过去某一时刻持续到现在的持续状态.标志是“since”.