There’s a ________ in our office that when it’s somebody’s birthday，they bring in a cake for us all to share.                                                (2011·山东，34)

Can you believe that in     a rich country there should be      many poor people？

(2013·山东高考)I've lived in New York and Chicago, but don't like ________ of them very much.

Insurance statistics show that most wives ________ their husbands, which means that women have stronger hearts.

Not having promoted the new digital camera successfully, the company should ______ its original marketing methods.