The bell the end of the period rang and we had to stop our discussionA. indicatingB. indi

发布时间：2020-08-16 09:17:50

The bell      the end of the period rang and we had to stop our discussion
A. indicating
B. indicated
C. to be indicated
D. being indicated

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(答案→)A. indicating
B. indicated
C. to be indicated
D. being indicated
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