We hadn't seen each other since he went to Beijing , 这个句子要杀死我了.【没见面 】 不是 【去】 北京以后的事吗? 那为什么不用 现在完成时,而用过去完成时呢? 求人解释呀.我感觉这个该是个很难理

we -----seen each other since i finished middle school,用haven't还是hadn‘t I saw Li Lei yesterday.We hadn't seen each other __I left Beijing. I saw Tom yesterday .We hadn't seen each other since we left school.为什么不是现在完成时 I saw Li Lei yesterday We hadn't seen each other since we left school.为什么不是现在完成时的havent I met Tom yesterday.We hadn't seen each other since we left Sydney in 1990.这里为什么用过去完成时, 现在完成时还是过去完成时?I happened to meet him in the street yesterday.We ____ each other for a long time.(haven't seen or hadn't seen) I can tell you nothing about Mary because we ( ) each other for agesA.did see B.saw C.hadn't seen D.haven't seen就选哪项? I （）Mary in the street yesterday,we （）each other since I left school.【答后给分】.A.met；didn’t see.B.had met；hadn’t seen.C.met；hadn’t seen.回答并附上原因. I saw Janson yesterday.We haven't seen each other since we left Beijing.这句话用现在完成时对吗?为什么这句话却用过去完成时I saw Li Lei yesterday.We hadn't seen each other since I left Beijing. I met Tom last Friday,We ___ each other since we left Sydney in 1990,A don't see B didn't seeC haven't seen D hadn't seen 我这有个不懂的英语题目,I m.Tina at train station .we hadn't seen each other for three years I ___ Mary in the street yesterday ,we ___ each other since I left school.A.met;didn't see B.had met;hadn't seen C.met;haven't seen D.met;hadn't seen答案上说是C,我觉得应该是D啊?谁能给我讲一下?还有一题：They are sitting _ we have been () by all our friends since we hadn't seen each other for ten years.A called on B called atC called intoD called for为什么选A? 一道高中英语单选题.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 woudn’t see为什么选C不选A 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... I _____ Mary in the street yesterday,we ____each other since i left school.A.met；didn’t see.B.had met；hadn’t seen.C.met；haven’t seen D.met ;hadn't seen. 英文翻译 We haven't seen each for ages since we met las tima. We haven't seen each other since we _ from high school.(graduate)