◎ 题干
—Why are the two students standing at the gate of the teachers'office?
—They________to each other in class and________.
[     ]
A. have whispered; are punishing
B. had whispered; were punished
C. whispered; are being punished
D. are whispering; were being punished
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◎ 解析
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◎ 知识点
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