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— These farmers have been to the United States. 
— Really? When ______ there?

A. will they go
B. did they go
C. do they go
D. have they gone
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科目：初中英語 來源： 題型：單選題

-These farmers have been to the United States．

-Really?When ________ there?


  1. A.
    will they go
  2. B.
    did they go
  3. C.
    do they go
  4. D.
    have they gone

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