i don't believe you've have already finished reading the book----- i ________(lend) it to you this morning答案是had lent 为什么,

i don't believe you've have already finished reading the book----- i ________(lend) it to you this morning答案是had lent 为什么,
i don't believe you've have already finished reading the book----- i ________(lend) it to you this morning
答案是had lent 为什么,

i don't believe you've have already finished reading the book----- i ________(lend) it to you this morning答案是had lent 为什么,
我不相信你已经读完了书-----我________(贷款）到你这

我不相信你已经读完了这本书--------我今天早上借给你的那本。
have already finished 是现在完成时，而借书又再have already finished 的之前发生的，所以要用过去完成时，had lent 就是过去完成时！
lent 是lend的过去分词

had lent it to you 应该是个定语从句，即我借给你的那本书，这个句子看上去似乎有一些毛病

因为你已经读完这本书，是发生在过去的状态，而我借书给你是发生在过去的过去，所以要用过去完成时。

应是lend的过去式:lent 因为有指定的过去时间 this morning