摘要：( )What you at this time yesterday? A. did ; do B. is; doing C. were; doing D. are ; doing
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What ____ you ______ at this time yesterday?
A. did ; do B. is; doing C. were; doing D. are ; doing
What ____ you ______ at this time yesterday?
A.did ; do B. is; doing
C. were; doing D. are ; doing
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What ____ you ______ at this time yesterday?
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| A．did ; do | B．is; doing | C．were; doing | D．are ; doing |
What ____ you ______ at this time yesterday?
|
A．did ; do |
B．is; doing |
C．were; doing |
D．are ; doing |
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