阅读下面两篇短文，从短文后所给各题的四个选项(A、B、C和D)中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
I remember the exact moment I learned the principle of preparing for luck.
I was on the wrestling team. Now, if there’s one thing I can tell you about any sport, it is that wrestling is probably the sport that has the least   31  .There are only two people out on the mat, so you cannot   32  it on your teammates or your coach. And guess what? There is no   33    because we do the whole thing indoors, so you can’t say, “It was raining” or “It was snowing.” It makes   34  to say wrestling is the sport with the least luck.
On our team were two world champions; one of them had been a world champion five times. We   35  had five people who were national champions. One of them was a guy   36  the name of John.
John had never been   37  in any high school wrestling competition that I could remember, 38  he was a national champion. There was nobody locally who could touch him.
One day, we   39  a match with our biggest opponent(对手). John went out on the mat, and about a minute and 30 seconds into the match he tried to make a particular   40  He rolled over, and his opponent  41  him halfway through his roll. He waspinned(压住) 42 !
The match was over.
I remember on the way home, one of our teammates tried to  43  John by saying, “Oh, he just got lucky.” John said, “That’s so stupid. The 44  presented itself, and he just took advantage of it.”
We used to have this big   45  in our wrestling room that the coach had put there: “Luck is what happens when opportunity meets   46 .”
John’s opponent was prepared to make use of this opportunity. The possibility of beating John was not   47  and he knew it. But he waited for the  48   opportunity to present itself, and he defeated and pinned a five-time national champion.
In other words, the real  49  is “Be prepared!” It’s not just finding the opportunity; you have to be prepared to   50  it.
.  

A．luck B．risk C．difficulty D．opportunity

A．accuse B．blame C．doubt D．keep

A．stress B．injury C．change D．weather

A．reason B．sure C．safe D．sense

A．also B．even C．too D．once

A．under B．for C．in D．by

A．hurt B．met C．trained D．defeated

A．although B．as C．yet D．until

A．went for B．waited for C．fought for D．played for

A．act B．step C．task D．move

A．fixed B．threw C．caught D．carried

A．accidentally B．fortunately C．unfairly D．immediately

A．control B．comfort C．convince D．forgive

A．success B．moment C．opportunity D．situation

A．warning B．sign C．sentence D．note

A．occasion B．challenge C．time D．preparation

A．obvious B．strong C．little D．slight

A．equal B．exact C．rest D．right

A．message B．theme C．key D．suggestion

A．receive B．follow C．seize D．save