Every person has some unforgettable experiences in his life .Some will remain in his heart as instructive stories to his life. I believe that we often tell ourselves the stories in order to keep our sanity(通情达理). These stories stay inside ourselves.
Many of the stories that I have kept inside myself are in the   36   of lessons that have taught me something about life. These lessons are 37 to carry with me. They require no outside   38   to store them in. No one can   39   me of them. They 40    their freshness without having to be renewed. And I can offer them to others without 41  them myself.
I remember there is a lesson which is about a little girl who was   42    from a serious disease. Her only chance of  43   was to have a blood transfusion(输血)  44   her five-year-old brother. The doctor asked the little boy 45    he would be willing to give his 46    to his sister. He took a 47  breath and said he would do it if it would save her life.
As the transfusion took place, he lay in bed next to his sister and smiled as he watched the color 48  to her cheeks. Then his   49   disappeared. He looked up at the doctor and asked in a trembling   50   . “Will I start to  51   right away?”
Being so  52  , the lovely little boy had  53  the doctor. He thought he was going to die after he gave blood to his sister.
This was my lesson in “ 54   ”. I learned that a candle loses  55  by lighting another candle.

A．cost B．form C．use D．number

A．difficult B．interesting C．harmful D．easy

A．space B．computer C．container D．ground

A．remind B．rob C．warn D．inform

A．remain B．lead C．value D．develop

A．damaging B．destroying C．stealing D．losing

A．hearing B．dead C．suffering D．free

A．recovery B．worsening C．treat D．respond

A．toward B．of C．from D．to

A．which B．if C．when D．how

A．blood B．life C．time D．health

A．slow B．deep C．short D．quick

A．review B．replace C．reduce D．return

A．courage B．smile C．breath D．color

A．voice B．body C．condition D．state

A．die B．disappear C．hesitate D．leave

A．foolish B．ridiculous C．young D．handsome

A．misunderstood B．worried C．hated D．liked

A．asking B．receiving C．crying D．giving

A．anything B．nothing C．something D．everything