--- Where are you, Nancy? --- Here in the sitting room, to Professor Smith．A. is writing

发布时间：2020-08-16 08:30:58


--- Where are you, Nancy?
--- Here in the sitting room,      to Professor Smith．
A. is writing
B. write
C. to write
D. writing

网友回答

A. is writing
B. write
C. to write
(答案→)D. writing
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