While they_(peerfor)on the stage,people_（clap)their hand

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While they___(peerfor)on the stage,people___（clap)their hands.

were performing,were clapping
再问：为什么呢。
再答： While they were talking , the bell rang while只指"时间段"，不指"时间点"，从句的动词只限于持续性动词这边我刚刚做错了，后面是clapped,不好意思哈

While they___(peerfor)on the stage,people___（clap)their hand While they ______(perform)on the stage,people ______(clap)th 英语on the stage on stage People___(stand)in line.They___(hurry) home. We_____(clap)our hands while the guards____(march)across the clap hand 还是hands? the children wait on their sick mother hand and foot. Ben ________(clap) his hands while the performers were march on stage 与on the stage的区别 They_____(clap)their hangs after watching the wonderful perf 是on the stage 还是in the stage on stage中间可以加the吗