23.What at nine o’clock last Sunday morning? A.was you doing B.were you doing C.are they doing D.does we do 查看更多

 

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What ____________ at nine o’clock last Sunday morning.?

A.was you doing

B.were you doing

C.are they doing

D.do you do

 

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What ____________ at nine o’clock last Sunday morning.?

A.was you doing

B.were you doing

C.are they doing

D.do you do

 

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What ________ at nine o'clock last Sunday morning.?

[  ]

A.was you doing

B.were you doing

C.are they doing

D.do you do

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