高校问答嘉定区地名管理办公室:怎样改成现在完成时
来源：百度文库 编辑：高校问答 时间：2024/04/29 21:57:23
My sister bought this book last week
不是楼上说的这个
My sister has kept this book since last week.
完成时要用延续性动词，将kept换成had也是对的。
My sister has had this book since last week.
不懂。。。。。。。。。什么破烂语法。。。。。。有什么意义？？？？？？？？？？？？？？？？？？？？？？？？日常生活中用得到么？？？
但是 have ..bought.. since 肯定是错的.
倒是说 have had it since ... 有点道理...
我什么考试都考过,可从来没有考过这种东西
My sister has brought this book since last week.
My sister has bought this book since last week
My sister has had the book for a week.