While watching TV, . A．the telephone rang B．the telephone was ringing C．t——青夏教育精英家教网—

摘要： While watching TV, . A．the telephone rang B．the telephone was ringing C．the phone was heard ringing D．I heard the phone ringing

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While watching TV, _.

A．the telephone rang B．the telephone was ringing

C．the telephone was heard ring D．I heard the phone ringing

－While watching TV, ________．

A．the telephone rang

B．the telephone was ringing

C．the telephone was heard ring

D．I heard the phone ringing

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