Susan______ a book about cooking last year, but I don't know whether she has finished it.
A、
was writing
B、
has written
C、
wrote
D、
had written
【正确答案】
A
【答案解析】
根据语境,不知道她现在是否写完了,可知苏珊去年“在写”关于烹饪的书,选A。若用一般过去时,则指苏珊“写了”书,与后文相互矛盾,故排除。B、D选项在时态上也与后面的时态相矛盾。
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