when jack arrived,he learned Mary___for almost an hour.请问这个选择题哪个是对的,为什么?when jack arrived,he learned Mary___for almost an hour.A.had gone B.had set off c.had left D.had been away请说明为什么这么选的理由，

4.When Jack arrived,he learned Mary ________ f4.When Jack arrived,he learned Mary ________ for almost an hour.A.had gone B.had set off C.had left D.had been away He was sleeping late when it arrived When Jack arrived he learned Mary __________ for almost an hour.A.had gone B.had set off C.had left D.had been away when jack arrived,he learned Mary___for almost an hour.请问这个选择题哪个是对的,为什么?when jack arrived,he learned Mary___for almost an hour.A.had gone B.had set off c.had left D.had been away请说明为什么这么选的理由， Did Jack come back early last night?—Yes.It wDid Jack come back early last night?—Yes.It was not yet eight o’clock _______ he arrived home.A.before B.when C.that D.until Did Jack come back early last night?--Yes.It waDid Jack come back early last night?--Yes.It was not yet eight o’clock ________ he arrived home.A.before B.when C.that D.until it was 6 when he arrived home改为疑问句 he was sleeping when it arrived改为一般疑问句 Hardly had he arrived when the bus left.翻译 When she arrived,he ______________the waste into the river.(dump) he were sleeping when the UFO arrived.为什么用were when he arrived in new york ,it was rainning? I was in Beijing on the day when he arrived. when I arrived home,he was cooking与when I arrived home,he cooked差不多的意思吧 为什么是when did he arrived?不是when was he arrived给出例句,将清语法要点 Hardly ( )when it began to rain had he arrived he arrived he he had arrived did he arrive请详细解答正确语序应该是什么？ He ()when you came.A.will arriveB.had already arrivedC.would already arriveD.has already arrived 可以这样改句子吗3 When he arrived I was working in the garden.4 When he arrived I was typing letters.5 When he arrived I was shaving.6 When he arrived I was boiling the milk.7 When he arrived I was phoning to my sister.8 When he arrived I was