根据句子意思，从方框中选用恰当的单词或短语填空。

a number of, facing, remain , eighties, out of breath, though, proudest, went into hiding, a great deal of

The old man arrived at the top of the tower ___________________________.
______________he sat in the stands, he practiced even harder.
Many local people __________________________in the mountains during the war.
When the basketball star appeared , ____________________ fans shouted with excitement.
When you don’t know how to answer it, you’d better _________________silent.
Tu Yoyo in her __________ is presented with the Nobel Prize for the discovery of artemisinin.
We should be brave and calm when ___________________ the tough problems.
The ______________moment in his career was in 2004---he scored 41 points in a game.