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单选题
130.She did not know whether to sell her books or.
A
A.to keep them for reference
B
B.keeping them for reference
C
C.if she should keep them for reference
D
D.to be kept for reference
答案解析
正确答案：A
解析：
130.【翻译】她不知道是卖了这些书，还是留着这些书当参考.【精析】A whether...or...连接的并列成分应保持结构一致。根据。r前面的to sell her books可知，空处也应用不 定式形式，可排除B、C两项。根据句意可知，She和keep之间为逻辑上的主谓关系，所以应用不定式的一般式，表主 动，即“to +动词原形”的形式。故选A。
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