This is the book（)I have learned a lot.A. to whichB. by whomC. from which

Student: How long can I have these books？Librarian: This one is on the three－hour－loan;

I have read the book for ten times, but still cant make head or______of what this author w

What I have learned from this professor is of______value to my subsequent research.A．indig

This book has been in the works so long that I have lost ______ of most of the sources fou

This is the book (?) I borrowed from Li Ming last week.

It is one of the most interesting book than I have ever read.()