第1个回答 2012-05-19
I have kept this book for two weeks.
It has been two weeks since I borrowed this book.
I borrowed this book two weeks ago.
第2个回答 2012-05-20
I have kept this book for two weeks.
It has been two weeks since I borrowed this book.
I borrowed this book two weeks ago. 我已经借了这本书两周了
I have borrowed the book for two weeks
第3个回答 2012-05-21
麻烦你看看句子再采纳。。
I have borrowed this book for two weeks. 用现在完成时,过去完成时算是截止到以前的某个时刻。
第4个回答 2012-05-19
I had borrowed this book two weeks ago本回答被提问者采纳