Fill in the blank with the most appropriate word.
"Have you seen my grammar book?" Nancy wanted to know ________ grammar book.
The two ways of relating what a person has said are 1)direct and 2)indirect (reported).
In the direct speech, the exact words of the original speaker are repeated.
In the indirect speech (reported speech), the exact meaning of what the speaker told is expressed but not necessarily in the speaker’s exact words.
Option B is correct as the question in the inverted commas is in the present perfect tense and 'had' is used with the third form of 'see'.
Options A, C, and D are wrong as Nancy was asking about her book, the question in the inverted commas is not in the simple past tense, and the grammar book is being talked about (Nancy isn't) respectively.
The correct answer is B)if I'd seen her.