He____ up and down the balcony all the time before the stranger came.A.had pacedB.had been pacedC.had been pacingD.was pacing

up and down don't let me what goes up and down but doesn't move? 是什么意思? Don't run up and down inthe classroom.改为陈述句 up and down翻译 up and down? up and down 翻译 jump up and down jumped up and down He____ up and down the balcony all the time before the stranger came.A.had pacedB.had been pacedC.had been pacingD.was pacing up and down什么意思 up and down翻译汉语? 英语翻译The wheels on the bus go round and round Round and round,round and round The wheels on the bus go round and round All through the town The people on the bus go up and down Up and down,up and down The people on the bus go up and down All t 是ups and downs还是up and down还是up and downs还是ups and down 请翻译 I'll go down with this ship,and I won't put my hands up and surrender up and down是什么词性的词组 what goes up and never goes down? We go up and down the building___elevator travel up and down 翻译成中文.