1. (2022高二下·临潼月考) 阅读下面短文，从短文后各题所给的四个选项（A、B、C 和 D）中，选出可以填入空白处的最佳选项。

From an early age, Parker always said that he would be an astronaut when he grew up. But no matter how hard he studied，he was never1to fly in space.2he grew over the maximum age for taking the selection tests. In other words, he would never be able to fulfill his 3.

Thinking about all the time and4Parker had put into trying to be an astronaut, people felt5for him. Despite what he was told about having to6his ambition, Parker continued training and studying,7he were going to have the tests next month.

He carried this on and on as he got8, and when he was a very old man he heard that they were doing some very important9experiments. For those experiments they needed a very10astronaut. Parker, who now walked with a11, was the only old man in the whole world who was12to fly in a rocket. Therefore, Parker found himself flying in13, all with the help of science.

It was clear that the14gained during those missions helped to cure one of the worst sicknesses for old people, and Parker was15as a hero.

Photos of the astronaut with a walking stick and no teeth16all over the world, and became a17of how you can never train or learn too much. It showed that18effort always brings19, even though it may not be in the form we had first20.