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
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
D
受last year的干扰而误选B项，但句意为"Shirley去年（一段时间）在写一本有关中国的书，但我不知她现在是否写完"，因此答案为D.