问题
选择题
While she ________ TV in the sitting room, the bell ________. [ ]
A. watches, rings
B. is watching, rang
C. was watching, rang
D. watched, was ringing
答案
答案：C
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While she ________ TV in the sitting room, the bell ________. [ ]
A. watches, rings
B. is watching, rang
C. was watching, rang
D. watched, was ringing
答案：C