the doorbell is ringing

改错the doorbell is ring The doorbell is ring 修改病句请说一下为什么 hear the doorbell ring or hear the doorbell ringswhy ring the doorbell 啥意思呢 the doorbell is ringing While watching TV,----- A the doorbell ring B the doorbell rings C we heard the doorbell ring D we heard the doorbell rings 要 理由 while watching television,__________ A we heard the doorbell ring B wo heard the doorbell rings He never 什么(ring) the doorbell when he comes back I can't hear Ring the doorbell,please.翻译 请问while watching TV,we heard the doorbell ring.ring为什么不能加S啊? 3 While watching television,____.Athe doorbell was rung Bthe bell of the door rang Cwe heard the doorbell ring yesterday evening i was playing the piano when the doorbell (ring .) When I---(read) in the room,I---(hear)the doorbell ring.求详解 When she heard the doorbell (ring),she rushed to the door适当形式 I ran to open the door when the doorbell ___(ring).应用什么时态?为什么? The dog barks when someone_____(ring)the doorbell.请问这里该填ringing还是rings? is the ring cheap? 麻烦老师解答：While watching telev While watching television,______. [ ] A.the doorbell rang B.the doorbell rings C.we heard the doorbell ring D.we heard the doorbell rings