I was just leaving the classroom ___ it rained.A.while B.when C.at D.duringA,B,C,D中该选哪个?为什么?他们之间的区别是什么?各个词语的意思又是什么?

The phone _______(ring)just as I was leaving. i was just leaving my office_________ the telephong began to ring.when还是while I was just leaving when someone ____(konck) on the door When / (Just) as I was leaving the house, the postman arrived.能不能用WhiIe I was leaving the house, the postman arrived. Unfortunately when I arrived she____,so we only had time for a few words.A just leftB has just left C was just leaving D had just left Just as I was leaving the house,it ______ to me that I had forgotten my keysA struckB hitC occurred I didn't mean it.I was just k___. 1、Unfortunately,when I dropped in,Doctor Li for Beijing to join in the fight against SARS,so we only had time for a few words.A、just left B、has just left C、is just leaving D、was just leaving2、----If the traffic hadn’t been so heavy,I co I was just还是I just was 翻译 ：I just didn't understand how that was fair. when i arrived,the football team -------,so i didn't have a chance to have their autograph.a is leaving b was leaving c has left just as I was leaving,the phone rang againjust as I was leaving在句中做状语用于修饰the phone ranng again?again做状语用于修饰rang吗? i was just lee I was just helping .I was just overwelming I just couldn’t bear to see this family leaving, hungry with just a snake and water.hungry为什么不用hungrily Just,again brilliant will end.Don't shekel is leaving 求一道选择题的答案,并说明理由Unfortunately , when I arrived she__ , so we only had time for a few words. A was just leaving B just left C had just left D has just left