—_____ you _____ the window?—Yes, I am.[ ]A. Is, cleaningB. Do, cleaningC. Are, cleaningD. Do, clean

题目简介

—_____ you _____ the window?—Yes, I am.[ ]A. Is, cleaningB. Do, cleaningC. Are, cleaningD. Do, clean

题目详情

—_____ you _____ the window?  
—Yes, I am.
[     ]
A. Is, cleaning    
B. Do, cleaning    
C. Are, cleaning    
D. Do, clean
题型:单选题难度:中档来源:同步题

答案

C

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