阅读下面短文，掌握其大意，然后从A、B、C、D四个选项中选出可以填入空白处的最佳选项。
At least thirty times Bobby had tried to climb the snowy mountain, but he had never   36    the top. His friend old Peeper, who knew a lot about his failures,  37  Bobby to try again. He gave Bobby a pair of sunglasses and said, “If it starts clouding over, put on the glasses, or if your feet start hurting, put them on too. The glasses are very 38 . They’ll help you.” Bobby received the gift without much thought.
The day came when he was to have another   39  . About two hours after he started, he felt his feet hurting. Then he  40  what Peeper had said, and put on the glasses. The pain was pretty bad, but   41   the sunglasses he could clearly see the snow-covered mountain top, so he went on.
  42  , clouds were gathering. But this time Bobby could still see the  43 through the clouds. He kept climbing , leaving the clouds behind, forgetting his pain, and finally arriving at the top. It was certainly worth it. His feeling of   44   was extremely good, almost as great as that  45 view. The mountain below was surrounded by a sea of clouds. He couldn’t believe that the clouds were as thick as that, so he looked more closely at the sunglasses, and discovered the  46  . Peeper had engraved (镌刻) the snow-covered mountain top on the sunglasses,  47  Bobby could see it when he was looking upwards!
Bobby __48   that the only difficulty to reaching the top had been losing   49   when he couldn’t see the mountain top. He was thankful that Peeper had used that little trick to help him see that his   50    was never impossible, and that it was still there, where it had always been.

A．left B．reached C．jumped D．ran

A．encouraged B．ordered C．allowed D．warned

A．real B．safe C．special D．expensive

A．try B．start C．test D．training

A．remembered B．expressed C．shouted D．regretted

A．under B．with C．for D．about

A．Happily B．Hopefully C．Unfortunately D．Luckily

A．friend B．top C．climber D．village

A．success B．decision C．freedom D．friendship

A．strong B．popular C．bad D．wonderful

A．way B．words C．book D．secret

A．and B．or C．if D．though

A．suggested B．realized C．expected D．hoped

A．love B．help C．face D．heart

A．place B．lesson C．aim D．story