阅读下面短文，掌握其大意，然后人36-55各题所给的四个选项（A、B、C和D）中，选出最佳选项。
Anna Douglas was 72 years old when she started writing her newspaper column．She had been a school teacher before she retired（退休），but she needed to keep  1   ．She was even willing to work without pay．She then offered her  2   with a business that helped other businesses find jobs for old people．Every day she  3   other old folks like her．By talking with them，she  4   two things．Old people had abilities that were not  5   ． But old people also had some   6    ．She found a new purpose for herself then．
Through the years，she used to write stories about people for national magazines．There was now a new  7   ： Old people like herself．She began to write a newspaper column called“ Sixty Plus”，which was about   8   old．She writes about the problems of old people，especially their problems with being  9   ．
Anna Douglas uses her   10   ability to see the truth behind a problem．She understands why problems begin．For example，one of her readers said that his grandchildren  11    the houses as soon as he came to visit．Mrs Douglas  12   some ways for him to understand his grandchildren．
“It's important to know something about your grandchildren's world，”says Mrs Douglas．“That means questioning and listening，and   13    is not what old people do best．Say good things to them and about them，”she continues．“Never try to   14   your grandchildren or other young people．Never   15   your opinion．Don't tell them what they should do．Commonly ，they have been taught they should have respect for old people．The old should respect them as well．”

A．free B．rich C．powerful D．busy

A．service B．money C．students D．books

A．observed B．met C．comforted D．answered

A．recognized B．followed C．enjoyed D．demanded

A．studied B．agreed C．gave D．used

A．mistakes B．problems C．questions D．characters

A．subject B．life C．way D．plan

A．getting B．respecting C．employing D．supporting

A．unknown B．refused C．misunderstood D．discouraged

A．thinking B．working C．writing D．leading

A．got B．entered C．left D．passed

A．invented B．chose C．suggested D．imagined

A．listening B．speaking C．pleasing D．advising

A．praise B．scold C．trouble D．encourage

A．speak out B．give up C．get back D．stick to