学帮网I____the CD since last monthA.have bought B.have kept选A还是选B?请详细说明理由.那如果用完成时表示拥有,用什么单词呢感，换句话说就是拥有的延续性单词是什么?
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I____the CD since last month
A.have bought B.have kept
选A还是选B?请详细说明理由.
那如果用完成时表示拥有,用什么单词呢感，换句话说就是拥有的延续性单词是什么?
选B
since last month 是自从上个月起 是一段时间 应该用延续性动词.
而bought是瞬间性动词.
B
从上个月开始，我便拥有这张CD了
since 从 …… 开始，是个延续动作
b
since 表示时间段，buy 为点动词
选B。
buy是一个瞬间动作，不能用于完成时。
keep是保存。才可以。
B.have kept
bought非延续性动词，不能用在这种完成时中。
I____the CD since last monthA.have bought B.have kept选A还是选B?请详细说明理由.那如果用完成时表示拥有,用什么单词呢感，换句话说就是拥有的延续性单词是什么?
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