1. ----- Sorry, I can’t return your book today because I am only half way through it.
------ _________. I have plenty of other books to read.
A. Take it easy B. No wonder C. Take your time D. No doubt
2. Chinese Vice-Premier called on Thursday for _______ all-out effort to ensure ______food and drug safety.
A．an; a B．an; / C．the; the D．/; the
3. It’s difficult to calculate ______ its price would be if the museum wanted to sell the ancient vase.
A. how many B. what C. how D. whose
