---David, you clean the blackboard today, ? ---With pleasure. I cleaned it yesterday, though. A. will you B. do you C. don’t you D. didn’t you 查看更多

 

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— David, you clean the blackboard today, ____    ?   
— With pleasure. I cleaned it yesterday, though.    

 [     ]
A. will you                              
B. do you  
C. don't you                          
D. didn't you

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