The cup is broken!Who ___ (break) it 参考答案好像是 have broken,那我填

The cup is broken!Who ___ (break) it 参考答案好像是 have broken,那我填 The window is broken .Try to _______ who broken it This flowerpot is broken.Who knocked it ___? The window is broken.Try to () who broke it. The window is broken.Try to ( ) who broke it. broken是break过去式? 表示杯子的状态用哪种?The cup is broken.The cup was broken is it broken 这个为什么不是 was it broken?我知道这个是被动语态 The window is broken.Try to ____who broken it The mother didn't know who ___ for the broken glass as it ha The cup is broken,是被动语态,为什么要用IS而不用was 英语定语从句 the cup which was broken is mine