摘要：15．- 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
．— 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
查看习题详情和答案>>
．— 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 |