____, Tom. Is this your book—No, it isn’t. I think it’s ____.

I heard from my old friends just now and I was eager __the letter to read it.[ ]

Jack wasn’t saying anything，but the teacher smiled at him ________ he had done something very clever.(2011·湖南)

It’s an English class．Please don’t Chinese．—Sorry．Mr．Brown．

News reports say peace talks between the two countries with no agreement reached. [ ]