While watching TV,__________.A.the telephone rang.B.I heard the phone ringing.
问题描述：
While watching TV,__________.A.the telephone rang.B.I heard the phone ringing.
答
While watching TV,__________.A.the telephone rang.B.I heard the phone ringing.
应该选B求分析当看电视时，我听到电话发出响声。A不行么应该可以