The U.S. official said North Korea --- and Iran --- should follow in the steps of Libya, which last December said it would work__________ to allow international weapons inspectors to do their work. 

My grandfather spends most of his time _______ because he loves nature. 

. — Are you sure the 2010 Shanghai World Expo will be a great success?— Yes, __________! It’ll be wonderful!

—Are you feeling ____ better today?—Thanks a lot. I feel ____ better now following the doctor’s advice.

 Furniture and flooring usually come to mind when we think of ways to use bamboo. Not many of us, ________, think of bamboo clothing.