单词拼写(根据首字母或中文写出单词的适当形式，每题0.5分，共2.5分)：
My brother graduated from Nanjing University with a d__________ in Computer Science.
Having had a good sleep and a good meal, he felt thoroughly _________（恢复精力）.
His uncle was one of the __________(生还者)from the earthquake.
The frightened child _________(退缩) into the corner when he saw a snake .
My roommate got a s_________ from school for breaking the school rule.