高中英语时态题-Did you enjoy meeting your old schoolmates at the pa

高中英语时态题-Did you enjoy meeting your old schoolmates at the party last week?-Yes,I did.We —— each other since we graduated from college.A.haven‘t seen B.didn’t see C.hadn‘t seen D.wouldn’t see 主要是怕根据答案解释...要第一感觉 求答案并给出理由