When did you buy these new CDs? I them for two days.A. had B. have bought C. have had

问题补充：

When did you buy these new CDs?

I them for two days.

A. had B. have bought C. have had

答案：

解析：句意为：---你什么时候买了这些光盘？---我已经买了两天了。本题考查的是现在完成时的用法。在英语中，买（buy）是短暂性动词，不可以用于表示一段时间的现在完成时句子中，但是，“买”了之后即为“拥有（have）”，是可以延续的，可以用在表示一段时间的现在完成时句子中。故应选C。