摘要： you the window ? Yes, I am. A. Do, clean B. Is, cleaning C. Are, cleaning
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______ you ______ the window ? Yes, I am.
[ ]
A. Do, clean
B. Is, cleaning
C. Are, cleaning
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B. Is, cleaning
C. Are, cleaning
—_____ you _____ the window?
—Yes, I am.
—Yes, I am.
[ ]
A. Is, cleaning
B. Do, cleaning
C. Are, cleaning
D. Do, clean
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B. Do, cleaning
C. Are, cleaning
D. Do, clean
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