Yang Jiazhenga book about Shuangqiao village last year but I don't knowwhether she has fin

问题补充：

Yang Jiazhenga book about Shuangqiao village last year but I don knowwhether she has finished it.

A. has written

B. wrote

C. had written

D. was writing

答案：

A. has written

B. wrote

C. had written

(答案→)D. was writing

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