摘要： --Has Tom finished his report so far? --I have no idea. He it this morning. A. did B. has done C. was doing D. had done
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——Has Tom finished his report so far?
——I have no idea. He it this morning.
A. did B. has done C. was doing D. had done
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— Has Tom finished his report so far?
— I have no idea. He ______it this morning.
A. did B. has done C. was doing D. had done
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--- Has Tom finished his report so far?
--- I have no idea．He ______it this morning．
- A.did
- B.has done
- C.was doing
- D.had done