【2013北京31】______ makes the book so extraordinary is the creative imagination of the writer.
A. That B. What C. Who D. Which
【2013北京33】 Experts believe _____ people can waste less food by shopping only when it is necessary.
A. why B. where C. that D. what
【2013湖南28】. Do not let any f ailures discourage you, for you can never tell _______ close you may be to victory.
A. how B. that C. which D. where
