题目内容
【题目】—What were you doing at 8:00 o'clock? ( )
—We _______ .
A. clean and sweepingB. cleaning, sweep
C. are cleaning and sweepingD. were cleaning and sweeping.
【答案】D
【解析】
略
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题目内容
【题目】—What were you doing at 8:00 o'clock? ( )
—We _______ .
A. clean and sweepingB. cleaning, sweep
C. are cleaning and sweepingD. were cleaning and sweeping.
【答案】D
【解析】
略