问题
选择题
The telephone ________, but by the time I got indoors, it stopped. [ ]
A. had rung
B. was ringing
C. rings
D. has rung
答案
答案：B
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The telephone ________, but by the time I got indoors, it stopped. [ ]
A. had rung
B. was ringing
C. rings
D. has rung
答案：B