Shirley ________ a book about China last year but I don’t know whether she has finished it．

Shirley ________ a book about China last year but I don’t know whether she has finished it．

A.has written

B.wrote

C.had written

D.was writing

答案及解析： D

解析：

描述去年的动作肯定用一般过去时或过去进行时。一般过去时只单纯表示过去发生了该动作，而过去进行时则表示过去持续的动作。