Did the book give the information you need?Yes .But _it,I had to read the whole book.

问题描述:

Did the book give the information you need?Yes .But _it,I had to read the whole book.

to find
表示目的要用动词不定式,由于不表示正在进行,所以不用进行时态
句意为:是的,但是为了找到它,我不得不阅读整本书