The dog barks when someone_____(ring)the doorbell.请问这里该填ring

The dog barks when someone_____(ring)the doorbell.请问这里该填ring 改错the doorbell is ring He never 什么(ring) the doorbell when he comes back 请问while watching TV,we heard the doorbell ring.ring为什么不能加S啊? hear the doorbell ring or hear the doorbell rings ring the doorbell 啥意思呢 The doorbell is ring 修改病句 I ran to open the door when the doorbell ___(ring). When she heard the doorbell (ring),she rushed to the door适当形 When I---(read) in the room,I---(hear)the doorbell ring.求详解 Do you hear it?Someone______(ring) the doorbell. I can't hear Ring the doorbell,please.翻译