现在完成时是指我把她送的笔记本珍藏着,一直到现在（截止我说话的时候）.
如果用过去完成时,表达的意思就是我珍藏到过去的某个时间点.但是现在可能就没有再珍藏了.
语法选择题：She gave me that notebook on my birthday,and I_____it in my draw.
语法选择题：She gave me that notebook on my birthday,and I_____it in my draw.
A.have since kept
B.since kept
C.am since keeping
D.had since kept
答案是A,为什么不选D?
A.have since kept
B.since kept
C.am since keeping
D.had since kept
答案是A,为什么不选D?
英语人气：629 ℃时间：2019-10-23 09:16:01
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