題目列表(包括答案和解析)
| A．do, do | B．have, done | C．were, doing | D．are, doing |
| A．did ; do | B．is; doing | C．were; doing | D．are ; doing |
What you at this time yesterday?
|
A．do, do |
B．have, done |
C．were, doing |
D．are, doing |
| A．did ; do | B．is; doing | C．were; doing | D．are ; doing |
What ________ you ________ at this time yesterday?
A. did, do?????? ????????????? B. have, done?? ????????????? C. were, doing?? ????????????? D. are, doing
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