Encouraging old ladies to cross the street whenever and wherever they want to is a typical example of ______.

A．Idleness is more painful than dull work.
B．The rich suffer more than the working people.
C．Work is desirable to everybody.
D．One must find some interesting work to do.

A．She wants to have the blue sweater refunded.
B．She wants to buy another sweater for her husband.
C．She wants to change the sweater for a smaller one.
D．She wants to have the blue sweater altered.