你借多久的书英文

kept表示一段时间的借 要用保存 延续性动词

you can keep this book as long as you want .it's up to you.

用现在完成时：1 How long have you kept this book?2 He has had this computer for three years

You may keep this book as long as you like

你这些翻译题应该都是考的现在完成（进行）时及其中关于since , for的应用吧，所以答案如下：1.How long has the book been borrowed by you?2.The computer has been his since more than 3 years ago .3.The film has been off for an hour .4.His grandfather has been gone to the Heaven for 5 years.5.The meeting has been on for 3 minutes.6.It has been a week since her sister left home.7.The store has been closed for 6 days.8.He has been learnig English for 10 years.9.They has been good friends since 2005.10.He has been working as a driver since he moved to there last year.

couldyoutellmehowlongyouwillkeepthisbook?keep为延续性动词，borrow为短暂性动词，用keep而不用borrow。望采纳，给分吧，(*^__^*)