摘要：29．--- Tom says he is too tired to go on. --- He can’t be. He for an hour. A．just worked B．has only been working C．has just worked D．had only been working
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—Tom says he is too tired to go on.
—He can’t be. He ____ for an hour.
A. just worked B. has only been working
C. has just worked D. had only been working
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---Tom says he is too tired to go on.
---He can’t be.He ______for an hour.
- A.just worked
- B.has only been working
- C.has just worked
- D.had only been working
— Tom says he is too tired to go on.
— He can't be. He ________for an hour.
— He can't be. He ________for an hour.
[ ]
A. just worked
B. has only been working
C. has just worked
D. had only been working
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B. has only been working
C. has just worked
D. had only been working